CN101317101A - Aided location communication system - Google Patents

Abstract

An Aided Location Communication System ('ALCS') is described that may include a geolocation server and a wireless communication device having a GPS section where the GPS receiver section is capable of being selectively switched between a standalone mode and at least one other mode for determining a geolocation of the wireless communications device. An Aided Location Communication Device ('ALCD') is also described. The ALCD includes a position-determination section having a GPS receiver and a communication section where the position-determination section is selectively switchable between a GPS-standalone mode and at least one other mode for determining a geolocation of the ALCD.

Description

Aided location communication system

Cross

The application requires on July 20th, 2005 to submit to, denomination of invention is the non-temporary patent application the 11/185th of the U.S. of " aided location communication system ", No. 533 right of priority, this application is to submit on July 3rd, 2004, denomination of invention is the U.S. Patent application the 10/885th of " aided location communication system ", No. 507 part continues, this application is to submit on May 22nd, 2003, denomination of invention applies for that for the PCT of " the region of search frequency reducing in the multi-mode GPS that wireless network uses is shifted " PCT/US03/16308 number part continues, this application is to submit on May 22nd, 2002, denomination of invention is " the region of search frequency reducing in the multi-mode GPS that wireless network uses is shifted ", present United States Patent (USP) the 6th, 684, No. 158 U.S. Patent application the 10/155th, No. 614 part continues, this application is to submit to February 28 calendar year 2001, denomination of invention is " information transfer in the multi-mode GPS that wireless network uses ", present United States Patent (USP) the 6th, 427, No. 120 U.S. Patent application the 09/795th, No. 871 part continues, this application requires the U.S. Provisional Application the 60/225th of proposition on August 14th, 2000, No. 076 right of priority under the 119th (e) joint, the application quotes in full all these applications, for your guidance.

In addition, U.S. Patent application the 10/885th, No. 507 is to submit on March 10th, 2003, denomination of invention is the U.S. Patent application the 10th of " information transfer in the multi-mode GPS that wireless network uses ", 385, No. 198 part continues, this application is to submit on April 19th, 2002, denomination of invention is " information transfer in the multi-mode GPS that wireless network uses ", present United States Patent (USP) the 6th, 542, No. 823 U.S. Patent application the 10/127th, No. 229 continuation, this application is to submit to February 28 calendar year 2001, denomination of invention is " information transfer in the multi-mode GPS that wireless network uses ", present United States Patent (USP) the 6th, 427, No. 120 U.S. Patent application the 09/795th, No. 871 continuation, this application require the 60/225th, No. 076 right of priority under the 119th (e) joint of U.S. Provisional Application of proposition on August 14th, 2000, the application quotes in full all these applications, for your guidance.

U.S. Patent application the 10/885th, No. 507 also is to submit on July 12nd, 2002, denomination of invention is the U.S. Patent application the 10/194th of " being used in the multi-mode GPS in the wireless network ", No. 627 part continues, this application is to submit on July 12nd, 2002, denomination of invention is " being used in the multi-mode GPS in the wireless network ", present United States Patent (USP) the 6th, 519, No. 466 U.S. Patent application the 10/068th, No. 751 continuation, this application is to submit to February 8 calendar year 2001, denomination of invention is " being used in the multi-mode GPS in the wireless network ", present United States Patent (USP) the 6th, 389, No. 291 U.S. Patent application the 09/781st, No. 068 continuation, this application requires the U.S. Provisional Application the 60/225th of proposition on August 14th, 2000, No. 076 right of priority under the 119th (e) joint, the application quotes in full all these applications, for your guidance.

U.S. Patent application the 10/885th, also being for No. 507 that on November 11st, 2003 submitted to, denomination of invention is the U.S. Patent application the 10/700th of " be used for point location based on satellite positioning method and system " roughly, No. 821 part continues, this application is that submission on May 18th, 2000, denomination of invention are " utilizing almanac information to determine the method and apparatus of GPS ", the present U.S. the 6th, 671, No. 620 U.S. Patent application the 09/575th, No. 492 part continues, the application quotes in full this two applications, for your guidance.

The application submitted on November 24th, 2004, denomination of invention is the U.S. Patent application the 10/997th of " frequency plot corrective system ", No. 797 part continues, this application is to submit on January 19th, 2004, denomination of invention is the U.S. Patent application the 10/759th of " obtaining fast of gps signal ", No. 677 part continues, this application is to submit to Dec 13 calendar year 2001, denomination of invention is " obtaining fast of gps signal ", present United States Patent (USP) the 6th, 778, No. 136 U.S. Patent application the 10/017th, No. 115 continuation, the application quotes in full this three applications, for your guidance.

The application also be submitted on March 24th, 2005, denomination of invention is the U.S. Patent application the 11/089th of " system based on venue services is provided " on network, No. 455 part continues, this application is a U.S. Patent application the 10/885th, No. 507 part continues, the application quotes in full this two applications, for your guidance.

The application also be submitted on Dec 22nd, 2004, denomination of invention is the U.S. Patent application the 11/022nd of " selection of satellite positioning aided communication system ", No. 294 part continues, this application is a U.S. Patent application the 10/885th, No. 507 part continues, the application quotes in full this two applications, for your guidance.

The application also be submitted on August 7th, 2002, denomination of invention is the U.S. Patent application the 10/213rd of " be used for mobile GPS terminal based on the GPS positioning system ", No. 767 part continues, this application be submit to April 5 calendar year 2001, denomination of invention is " be used for mobile GPS terminal based on the GPS positioning system ", United States Patent (USP) the 6th now, 462, No. 708 U.S. Patent application the 09/828th, No. 066 continuation, the application quotes in full this two applications, for your guidance.

The application also be submitted on July 18th, 2002, denomination of invention is the U.S. Patent application the 10/199th of " tracker structure of gps system ", No. 253 part continues, that this application requires is that submit to July 18 calendar year 2001, denomination of invention is the U.S. Provisional Patent Application the 60/306th of " tracker structure of gps system ", No. 620 right of priority under the 119th (e) joint, the application quotes in full all these applications, for your guidance.

The application also be submitted on June 6th, 2005, denomination of invention is the U.S. Patent application the 11/149th of " based on the main frame global position system ", No. 438 part continues, this application is that submission on October 10th, 2002, denomination of invention are the U.S. Patent application the 10/269th of " based on the main frame global position system ", No. 914 continuation, the application quotes in full this two applications, for your guidance.

The application also be submitted on October 10th, 2002, denomination of invention continues for the part of No. the 10/269th, 105, the U.S. Patent application of " layering is based on main frame satnav solution ", the application quotes in full this application, for your guidance.

The application also be submitted on October 10th, 2002, denomination of invention continues for the part of No. the 10/269th, 104, the U.S. Patent application of " based on the navigation processing in the main frame satnav solution ", the application quotes in full this application, for your guidance.

Technical field

The present invention relates to global location (" GPS ") receiver, relate in particular to the multi-mode gps receiver that uses with wireless network.

Background technology

Wireless device as twoway radio, portable television, personal digital assistant (" PDA "), cellular phone (being also referred to as cellular phone and/or " cell phone "), satellite radio receiver and GPS (" GPS ") in global use just with speed increment rapidly.The cellular phone that comprises PCS Personal Communications System (" PCS ") equipment has become very usual.Utilize these wireless devices to provide voice, data and other service to provide many facilities for the cellular system user as the access to the Internet.In addition, the specific function coupling that more and more provides with the conventional land lines service provider of many specific functions of providing of many wireless service providers.Specific function such as Call Waiting, call forward, caller ID (" caller I.D. "), three-dimensional calling, data transmission etc. is provided jointly by land line and wireless service provider.These specific functions are generally operation in the same manner on wireless device and land line phone.

And other wireless communication system of the PMR private mobile radio equipment (" SMR ") that uses such as two-way paging, relay radio equipment and police service, fire-fighting and medical service has also become common mobile communication.

Gps system (being also referred to as global position system " SPS " or navigational satellite system) has also become very usual.In general, gps system is normally based on the navigational system of satellite (being also referred to as " spacecraft " or " SV ").The example of gps system comprises, but be not limited to other the following West Europe GPS USN's navigational satellite system (" NNSS ") (being also referred to as TRANS IT), LORAN (loran), Shoran (short-range navigation system), Decca (Decca), TACAN (aerial tactical air navigation system), NAVSTAR (NAVSTAR system), the Russian homologue of NAVSTAR that is called GLONASS (Global Navigation Satellite System) (" GLOANASS ") and " Galileo (Galileo) " that picture proposes are planned.For instance, at " GPS theory and practice " (GPS Theory and Practice that this quotes in full for your guidance, Springer-Verlag Wien company reprints, Fifth ed., revised editon by Hofmann-Wellenhof, Lichtenegger and Collins, Springer-Verlag Wien, NewYork, 2001) in US NAVSTAR gps system has been described.

Usually, gps receiver receives from the radio transmissioning signal based on satelline radio-navigation systems, and utilizes those transmission signals that receive to determine the geographic position of gps receiver.Those of ordinary skill in the art should understand, the geographic position of gps receiver can the applications exploiting gps receiver to three gps satellites of gps satellite location aware really the well-known notion that intersects of set a distance determine.

In general, comprise its positional information and the radio transmissioning signal of orbit information based on each the gps satellite broadcasting in the gps satellite radio navigation system.More particularly, for example, each in the GPS System in USA comprises four high precision atomic clocks around the orbital motion gps satellite: two cesium-beam atomic clocks and two rubidium atomic clocks.These clocks provide the accurate timing pulse that is used in generation is transferred to the earth from gps satellite two kinds of unique binary codes (be also referred to as pseudo noise " PRN ", or pseudo noise " PN " sign indicating number).Specific gps satellite in these PN sign indicating number signs GPS constellation.

Each gps satellite also sends the set of number coding almanac data of the accurate track that limits gps satellite fully.Almanac data is indicated the place at any given time gps satellite place, accurately can use the gps satellite ground trace to specify its position in latitude and the longitude determination.Information in the almanac data is encoded and sends from gps satellite, and the accurate indication of the definite position of empty gps satellite on earth of any given time is provided.

In general, in gps system, there are four variablees, that is, and by x, y and definite position and time (x, y, z and t) of z coordinate.These variablees utilize triangulation technique and accurately system clock is definite, so that by measure the position of determining gps receiver by gps receiver or the scope of being done, scope-speed and pseudo-range on gps receiver.In order accurately to determine x, y, z and t variable, need four gps satellite signals to provide usually to find the solution four simultaneous equations of four variablees.

These gps satellites are configured to make gps receiver to have to determine that it passes through basically, for example, and the ability of latitude, longitude and the position highly represented.This finishes by the resection process of utilizing the distance of measuring from the gps receiver to the gps satellite usually.

For instance, if the clock of gps system time accurately is arranged in the gps receiver utilization, arrives the required time of gps receiver by the record coding gps satellite signal and can accurately measure true distance or scope from gps receiver to each gps satellite.Each scope will limit the surface of the spheroid of its center on given gps satellite, and the intersection point of this spheroid of at least three gps satellites will draw as latitude, longitude and three unknown numbers highly.

Unfortunately, gps receiver utilizes the approximate cheap crystal oscillator clock of being arranged to the gps system time usually.Therefore, the true gps system time of these clock deviations, and because this departing from, the distance that gps satellite is measured is different from " very " scope.Those of ordinary skill in the art should understand that these distances are called as " pseudo-distance ", add the scope correction that derives from gps receiver clocking error or skew because they are generally equal to " very " scope.In general, need four simultaneously-measured pseudo-ranges to find the solution four unknown numbers, add gps receiver clock skew (being also referred to as " uncertain amount of time ") because these unknown numbers comprise latitude, longitude and three unknown numbers of height.Should understand, picture this quote in full for your guidance, on September 9th, 2003 that issue, denomination of invention be the United States Patent (USP) the 6th of " utilizing the overdetermination navigation solution to find the solution uncertain amount of time among the GPS ", 618, the solution of describing in No. 670 is such, and many well-known technology can be used for the influence of uncertain amount of reduction time.

Along with these technology are more and more widely used, current trend is that requirement merges to the GPS service in the varied electronic equipment that comprises PDA, cellular phone, portable computer, wireless device, satellite radio devices, relay radio equipment, SMR, automobile, bidirection pager etc.Simultaneously, electronic equipment set manufacturer constantly make great efforts to reduce cost and produce for consumers may tool price attractive force product.

In cellular phone, the interest that gps receiver and cellular phone are combined is derived from new Federal Communications Committee (" FCC ") and requires: in case given cellular phone sends as " 911 " urgent call of calling out (being also referred to as " strengthening 911 " or " E911 "), cellular phone can be positioned within 50 feet.When emergency condition took place, people got used to calling 911 on continental rise (being also referred to as " land line ") phone (being commonly referred to " 911 " calls out) and get in touch with the urgent center of the position that can discern the continental rise phone that sends calling automatically.

Unfortunately, if people initiatively do not import or describe their position, the wireless device as the cellular phone can't be passed on their position.In view of the above, US Congress has formulated requirement by FCC: in case given cellular phone sends the urgent call as E911, cellular phone can be positioned within 50 feet.Such position data can aid police, paramedic and other law enforcement and government functionary, and may need to have other procurator that legitimate right is determined the position of particular cell phone.But the E911 service is different from 911 callings in operation on the wireless device and moves on land line phone.

When sending 911 callings from land line phone, 911 receiving centers receive calling, and determine the source of calling.Fail or forget that 911 receiving centers can obtain the position of making calling under the situation of the his or her position of explanation from public switched telephone network (PSTN) (PTSN) the caller, and urgent personnel are sent call out the position.

Replace, if send E911 from the wireless device as the cellular phone, the E911 receiving center receives calling, but can not determine the source of calling.If the caller fails or forgets the his or her position of explanation, the position that the E911 receiving center just can not obtain to call out is because wireless network is different from PTSN.Current, the E911 receiving center can only accomplish to determine to send the position of the cell site of calling at most.Unfortunately, the typical cell website in the Radio Network System may the about 30 kilometers zone of covering diameter.The further precision of position is also permitted by the power setting of wireless calling equipment in digital network and is determined.But this still causes covering several kilometers zone.

The suggestiveness solution of this problem comprises gps receiver and cellular phone is combined.The additional benefit of this suggestiveness solution be integrate any gps data that gps receiver produces can by cell phone user be used for the determining of the latitude of direction is determined, cell phone user is just attempting to find out other position or other cellular phone and longitude station (position or position), cell phone user with respect to the determining of the position of other terrestrial reference, cell phone user is determined by the direction of the Internet map or other GPS mapping techniques etc.Such data can be used for non-E911 calls out, and also is very useful for honeycomb fashion and PCS client.

An example as the current expulsive force that gps receiver and cellular phone are combined, quote United States Patent (USP) the 5th for your guidance, that be presented to Krasner hereby, 874, having described base station (being also referred to as base station and/or MTSO " MTSO ") for No. 914 utilizes the honeycomb fashion data link and does not receive or calculate with utilizing the gps satellite ephemeris information pseudo-range of observing gps satellite, to comprise that the gps satellite information of Doppler (Doppler) information sends to the method for remote unit (for example, cellular phone).

But the means of Krasner are subjected to the restricted number of the data link that can be connected with GPS exclusive data supplied library.System hardware need escalate into management the GPS information delivery is arrived each honeycomb fashion of request gps data or PCS user's additional requirement.These additional requirements are separated in top end reason wireless system management that requires and the conventional voice-and-data business of sending.

Another patent that relates to the assistance between gps system and the wireless network is No. the 5th, 365,450, the United States Patent (USP) of also quoting for your guidance, being presented to Schuchman hereby.In the list of references of Schuchman, the ephemeris by cellular telephone system is auxiliary to be that gps receiver obtains and to follow the tracks of gps satellite required.But honeycomb fashion and other wireless network may not always have to mobile gps receiver provides ephemeris auxiliary ability.

Therefore, need gps data be delivered to the wireless communication system that comprises honeycomb fashion and PCS client with effective means technically.Also need to be with GPS honeycomb fashion and pcs telephone.In addition, also need to receive band GPS honeycomb fashion and the pcs telephone that the gps satellite data are used for honeycomb fashion/PCS client (that is user).In addition, also need need not the geographical large, honeycomb formula system that approaching base station just can utilize GPS information and/or GPS information is supplied to cell phone user that for the many application that comprise E911.

Summary of the invention

The invention describes the aided location communication system (" ALCS ") that can comprise geo-location service device and Wireless Telecom Equipment.The geo-location service device can receive at least one signal from least one GPS (" GPS ") satellite, and Wireless Telecom Equipment can comprise the gps receiver part.Gps receiver part can be optionally switched between at least a other pattern in the geographic position of stand-alone mode and definite Wireless Telecom Equipment.At least a other pattern can comprise autonomous mode, network assistance pattern, reverse auxiliary mode, expand autonomous mode and network center's pattern.Wireless Telecom Equipment can be optionally sends to the geo-location service device with the geographic position of determining of Wireless Telecom Equipment.

The present invention has also described aided location communication facilities (" ALCD ").ALCD comprises the position determining part that contains gps receiver and carries out the communications portion of signal communication with position determining part.Position determining part can the receiving position coherent signal and determine the geographic position of ALCD from the position coherent signal that receives, and position determining part is optionally switched between at least a other pattern in the geographic position of GPS stand-alone mode and definite ALCD, and at least a other pattern comprises GPS autonomous mode, GPS network assistance pattern, GPS network center pattern, reverse auxiliary mode, Network Based and expand autonomous mode.This communication can be from external position auxiliary source receiving position supplementary, and wherein the position auxiliary source is positioned at the outside of ALCD.

In case studied accompanying drawing and detailed description, other system of the present invention, method, feature and advantage are conspicuous for the person of ordinary skill of the art.Our meaning is, all such spare systems, method, feature and advantage all are included in this description, within the scope of the present invention, and protects by appended claims.

Description of drawings

By the present invention may be better understood with reference to the accompanying drawings.Parts in the accompanying drawing may not draw in proportion, but focus on illustration principle of the present invention.In the accompanying drawings, identical label is represented corresponding part from start to finish.

Fig. 1 illustration utilize gps receiver to be positioned at the realization example of the aided location communication system (" ALCS ") of aided location communication facilities (" ALCD ") wherein.

Fig. 2 is the block scheme of the realization example of ALCD as shown in Figure 1.

Fig. 3 illustration the realization example of structure of ALCS as shown in Figure 1.

Fig. 4 illustration another of structure of ALCS as shown in Figure 1 realize example.

Fig. 5 illustration another of structure of ALCS as shown in Figure 1 realize example.

Fig. 6 illustration be positioned at the base station of sub-district in the example of cellular communications system.

Fig. 7 illustration utilize on two exemplary base station and two sub-districts in directional antenna and utilize the realization example of the cellular communications system of three frequencies.

Fig. 8 illustration 7 channels are assigned to many sub-districts typical N 7 frequencies utilize the example of planning again.

Fig. 9 illustration utilize the realization example of ALCS of Fig. 1 of reverse auxiliary mode.

Figure 10 illustration utilize reverse auxiliary mode so that improve the realization example of ALCS of Fig. 1 of the frequency capability in the sub-district by SDM.

Figure 11 illustration utilize reverse auxiliary mode and realize example so that improve another of ALCS 1100 of the frequency capability in the sub-district by SDM.

Figure 12 illustration utilize reverse auxiliary mode to move to move the realization example of auxiliary ALCS 1200.

Figure 13 shows the realization example of the ALCD of Fig. 1 in the interior room of buildings.

Figure 14 shows the realization example of ALCD of Fig. 1 of the intersection point that is positioned at four city pieces that contain many buildingss.

Figure 15 illustration with the combine realization example of the time transfer organization that uses of the ALCS of Fig. 1.

Figure 16 illustration with the combine realization example of the frequency translation structure used of the ALCS of Fig. 1.

Figure 17 illustration with the combine block scheme of realization example of the frequency translation structure used of the ALCS of Fig. 1.

Figure 18 is the process flow diagram of the example of the process carried out of the ALCS of illustration Fig. 1.

Figure 19 illustration utilize the block scheme of realization example of ALCD of Fig. 1 of GPS engine.

Embodiment

In the following description of preferred embodiment, with reference to forming a part of the present invention and the accompanying drawing that can make the specific embodiment that the present invention implemented being shown by illustration.Should be understood that under the situation that does not depart from the scope of the invention, can use other embodiment and the structure change.

Summary

Those of ordinary skill in the art should understand that gps system comprises global position system " SPS " and/or navigational satellite system.In general, gps system is normally based on the navigational system of satellite (being also referred to as " spacecraft " or " SV ").The example of gps system comprises, but be not limited to, the U.S. (" U.S. ") navy navigation satel-lite system (NNSS) (" NNSS ") (being also referred to as TRANSIT), LORAN, Shoran, Decca, TACAN, NAVSTAR, be called Russian homologue and other the following West Europe GPS as " Galileo " plan that proposes of the NAVSTAR of GLONASS (Global Navigation Satellite System) (" GLOANASS ").For instance, at " GPS theory and practice " (GPS Theory and Pract ice that this quotes in full for your guidance, Springer-Verlag Wien company reprints, Fifth ed., revised editon by Hofmann-Wellenhof, Lichtenegger and Collins, Springer-Verlag Wien, NewYork, 2001) in US NAVSTAR gps system has been described.

When combining, gps system should have the ability of obtaining and following the tracks of gps satellite under the condition that the exemplary radio communication system user may run into gps system parts and wireless communication system (can comprise honeycomb fashion, paging, two-way paging, personal digital assistant (" PDA "), bluetooth, Wi-Fi and pcs system).Some of these conditions can comprise the use of (for example, skyscraper has been blocked in the urban district of satellite field of view) in the dense city that indoor use, the sky visual field be restricted.Although these conditions are for normally manageable based on the wireless communication system of land, they are the environment of difficulty for gps system.For example, obtaining signal, tracking satellite from gps satellite at gps receiver also is not delivered to any external information tradition " GPS the is independent " pattern of navigating on gps system ground when needed, there is long problem of set time (" TTFF (Time-To-First-Fix) ") first in typical case's gps receiver, and has limited the ability of obtaining gps satellite signal under the condition of the indoor or limited sky visual field.Even utilize some additional informations, owing to must obtain almanac data from the gps system itself that the strong gps signal of common needs reliably obtains almanac data, so the TTFF time also may be above 30 seconds.The reliability of the common impact position availability of these conditions, and the power consumption in the Wireless Telecom Equipment as the cellular phone.

In order to overcome these problems, the invention describes the aided location communication facilities (" ALCD ") of deciding to allow the various modes operation on various factors.ALCD can be cellular phone, paging equipment, bidirection pager, PDA, enable bluetooth equipment, Wi-Fi enables equipment, laptop computer, desk-top computer, non-mobile device and/or pcs system.ALCD enables SIC (semiconductor integrated circuit) (that is, chip or chipset) in the equipment equipment, laptop computer, desk-top computer, non-mobile device and/or the pcs system as cellular phone, paging equipment, bidirection pager, PDA, the equipment of enabling bluetooth, Wi-Fi.

ALCD can be with GPS stand-alone mode, GPS autonomous mode, GPS network assistance pattern, GPS network center pattern, oppositely auxiliary mode, Network Based and expansion auxiliary mode operation.This multiple modes of operation ALCD can be operated under various environment and from or receive and/or " assisting " information of transmission to external network or external accessory.

ALCD comprises position determining part and/or the communications portion that contains gps receiver, for instance, gps receiver in position determining part is receiving strong signal, and when containing up-to-date ephemeris or almanac data, or when not needing accurate location, can under " GPS is independent " pattern, use ALCD.Under the GPS stand-alone mode, position determining part does not receive any auxiliary, therefore, irrespectively operates with any available external network or external accessory.Under the GPS stand-alone mode, the gps receiver in the position determining part obtains gps satellite signal, and utilizes those signals to determine the geographic position of ALCD.Gps receiver also can be used for following function with gps satellite signal in ALCD, and if desired, is used for navigation feature.The position of the ALCD that determines can internally be used for inside or the outside of position determining part and the inside that internally is used for communications portion of position determining part at ALCD.

In another example, the gps receiver in ALCD receives strong signal from gps satellite once more, and contains under the situation of up-to-date ephemeris or almanac data, or when not needing accurate location, also can use ALCD under " GPS is autonomous " pattern.Similar with the GPS stand-alone mode, under the GPS autonomous mode, the position determining part among the ALCD does not receive any auxiliary, therefore, irrespectively operates with any available external network or external accessory.Under the GPS autonomous mode, gps receiver obtains gps satellite signal, and utilizes those signals to determine the geographic position of ALCD.Gps receiver also can be used for following function with gps satellite signal, and if desired, is used for navigation feature.But, only replace and will determine that the position is used in ALCD inside, under autonomous mode, ALCD also with ALCD really allocation send to the external network that comprises geo-location service device or other similar devices.

Similarly, in another example, receive strong signal once more, and contain under the situation of up-to-date ephemeris or almanac data, or when not needing accurate location, also can under " oppositely auxiliary " pattern, use ALCD at gps receiver.Similar with GPS autonomous mode and GPS stand-alone mode, under reverse auxiliary mode, the position determining part among the ALCD does not receive any auxiliary, therefore, irrespectively operates with any available external network or external accessory.Under reverse auxiliary mode, gps receiver obtains gps satellite signal, and utilizes those signals to determine the geographic position of ALCD.Gps receiver in the position determining part also can be used for following function with gps satellite signal, and if desired, is used for navigation feature.But replacement will determine that the position is used in ALCD inside, and under reverse auxiliary mode, ALCD sends to external network with all kinds metrical information on the gps receiver.

In another example, if the gps receiver among the ALCD does not receive enough strong gps signal, for example, when ALCD is used in when indoor, ALCD can operate under " GPS network assistance " pattern, can help (promptly at external network as the wireless communication system, " assist ") position determining part utilizes under the situation that the additional information of gps signal that gps receiver receives and external network or external accessory supply obtains, follows the tracks of and/or navigate, and position determining part can switch to different operation modes.Additional information can comprise that year calendar or attached almanac information, coarse position information, doppler data, observe satellites position, time and frequency supplementary, the intensity that receives radio signals or assistant GPS receiver obtain other supplementary of the information that gps receiver need obtain, navigates or follow the tracks of.The means of GPS network assistance pattern are different from the means of " GPS network center " pattern (being also referred to as " moving based on GPS " pattern or " network-assisted " pattern in other known references), because in the means of GPS network assistance pattern, the gps receiver among the ALCD can finally obtain to locate ALCD desired position and trace information voluntarily.

In addition, in another embodiment, be used under the more abominable signal receiving circumstance and the gps receiver among the ALCD can not receive under the situation of any gps signal at ALCD, ALCD can operate under " Network Based " pattern.Like this, the external network that can place one's entire reliance upon of the position determining part among the ALCD obtains any locating information.Usually, pattern Network Based is not used GPS or other gps satellite information ground calculating location.Derive from the Internet resources that send tower, step-out time (" TDOA ") technology, non-cellular radio network etc. such as honeycomb fashion the position of ALCD.

In addition, in another embodiment, the gps receiver in ALCD suffers restraints or under the situation in the geographic position of calculating ALCD on the network, ALCD can operate under GPS network center pattern at aspect of performance.Like this, ALCD is received signal in position determining part, and location dependent data is sent to network is used for the final position and calculates.This pattern is also referred to as " mobile-assisted " pattern.

Similarly, in another embodiment, be used under the abominable signal receiving circumstance and can not receive under the situation of any gps signal at ALCD, ALCD can operate under " expanding autonomous " pattern.Expanding under the autonomous mode, ALCD can utilize various types of external position auxiliary resources/equipment or external network to obtain the positional information that can be fully has nothing to do with any GPS information.Expanding under the autonomous mode, ALCD does not use GPS or other gps satellite information ground to calculate its position.Derive the Internet resources of the position of ALCD from the external unit that maybe can send positional information such as computer network, communication network, wireless network.

ALCD can be according to several variablees, and the hobby selected of user or require to switch between these operator schemes, and can control by Local or Remote, or by give ALCD automatically or manual order switch.

The GPS structure

Fig. 1 utilizes the realization example that contains communications portion (not shown) and the aided location communication system (" ALCS ") of the ALCD 102 of the gps receiver (not shown) of the position determining part (not shown) that is arranged in ALCD 102.As shown in Figure 1, during operation, ALCD 102 carries out signal communication by base station 106 and wireless propagation path 108 and wireless network 104, and by signal communication paths 112,114,116 and 118 and at least one gps satellite of gps satellite constellation 110 carry out signal communication.Those of ordinary skill in the art should understand that though four gps satellites 120,122,124 and 126 only are shown, gps satellite 120,122,124 and 126 can be ALCD 102 observable any gps satellites in the middle of the GPS constellation 110.

ALCD 102 can comprise that the wireless processing section that is also referred to as " call treatment " part in gps receiver (not shown) in the position determining part (not shown) and the communications portion (not shown) divides (not shown).Gps receiver in the ALCD 102 can receive gps signal from gps satellite constellation 110 by signal communication paths 112,114,116 and 118, and the communications portion of ALCD 102 can receive wireless communication signals from wireless network 104 by signal communication paths 108 and base station 106.In some implementations, ALCD 102 can also send to wireless network 104 with wireless communication signals by signal communication paths 108 and base station 106.ALCD 102 can be the wireless device such as cellular phone (being also referred to as wireless phone, cell phone, mobile phone or mobile phone), comprise, but be not limited to, any other type mobile device of personal digital assistant (" PDA "), pager, computing machine, twoway radio, relay radio equipment, PMR private mobile radio equipment (" SMR "), or any miscellaneous equipment of positional information is determined in hope.ALCD 102 also can be the SIC (semiconductor integrated circuit) (that is, chip) that is positioned at wireless device, or is positioned at the combination (that is chipset) of the SIC (semiconductor integrated circuit) of wireless device.The example of chip or chipset can comprise any integrated circuit that contains gps receiver and can comprise the transceiver of a special IC (" ASIC ") or several ASIC and a digital signal processor (" DSP ") or several DSP.Under the situation of cellular phone, ALCD 102 can utilize the cellular transceiver in the communications portion, and this cellular transceiver utilization includes but not limited to any transmission plan of CDMA, CDMA-2000, W-CDMA, TDMA, FDMA, GSM, UMTS, AMPS, Bluetooth, Wi-Fi and/or any combination or expansion operation under any radio frequency (" RF ") frequency band of these transmission plans or similar scheme.

Fig. 2 is the block scheme of the realization example of ALCD 102 as shown in Figure 1.The ALCD 102 of Fig. 2 comprises communications portion 200 and position determining part 202.Wireless communication section 200 can comprise to be carried out call treatment (" CP ") the part (not shown) of processing capacity and can comprise wireless transceiver wireless application.For example, under the situation of cellular phone, ALCD 102 can comprise the CP part that has cellular transceiver.Position determining part 202 comprises the gps receiver 204 that receives satellite transmission signal 206 from gps satellite constellation 110.Position determining part 202 can also comprise the non-gps receiver that can receive non-GPS position supplementary as described below.Position determining part 202 is carried out the position counting function of ALCD 102.By the technology of communications portion 200 and the technology of position determining part 202 are combined, ALCD 102 provides two kinds of main service systems: the main service system of the main service system of the wireless device as the cellular telephone services and the gps receiver of the geographical location information that ALCD 102 is provided.Those of ordinary skill in the art should understand that this many advantages that comprise the E911 requirement of satisfying Federal Communications Committee (" FCC ") that are integrated into provide assurance.

In ALCD 102, or alternately, between the external accessory (not shown) of ALCD 102 and ALCD 102, the communication between communications portion 200 and the position determining part 202 takes place.These communications make signal transfer to position determining part 2002 from communications portion 200, and usually occur on serial communication link 208 and the hardware lines 210, but if desired, also can use other line.

For instance, communications portion 200 can be shared identical digital processing unit (not shown) and other circuit with position determining part 202.Under these circumstances, communication between these parts can be undertaken by intertask communication, and some data between communications portion 200 and position determining part 202 as any time or frequency translation shift can not use hardware lines 210, but in circuit inside, or potentially, decide on circuit design, can not need to shift.

In Fig. 3, show the realization example of ALCS 300 structures.ALCS 300 structures are used for the GPS technology realization of E911 and geo-location service under the support of the various realizations of ALCD 302.Utilize low cost, low-power, high-performance and high accurate GPS receiver and wireless network communication services, ALCS 300 provides highly reliable and economic solution for ALCD 302.ALCS 300 supports to comprise GPS stand-alone mode, GPS autonomous mode, GPS network assistance pattern, GPS network center pattern, oppositely auxiliary mode, Network Based and all types of geo-location service of expanding auxiliary mode.ALCS 300 also adapts to and comprises CDMA, TDMA, AMP and even the panoramic wireless communication technology of paging system.

In Fig. 3, the realization example of ALCS system 300 can comprise gps satellite 304 (indication is in the constellation of the gps satellite 304 on the Earth's orbit), the ALCD 302 that comprises gps receiver, base station 306, geographic position (server) service centre 308, geographic position terminal applies 310 and public safety answer point (" PSAP ") 312.

In an example of operation, gps satellite 304 is sent in the spread-spectrum signal 314 that receives on ALCD 302 and the geo-location service device 308.For the purpose of being easy to illustration, not shown other gps satellite, still, other satellite also sends the signal that is received by ALCD 302 and geo-location service device 308.If ALCD302 receives enough strong signal 314, the gps receiver among the ALCD 302 can calculate the position of ALCD 302 with the typical way of known gps system.

But, if ALCD 302 fails to receive enough strong signal 314, or to fail to receive the position of signal from host computer ALCD 302 from enough gps satellites 302, it still can be communicated by letter with base station 306 by signal path 316.In this example, base station 306 can convey to ALCD 302 with information by signal 316, makes ALCD 302 can calculate its geographic position.Alternately, base station 306 can be communicated to geo-location service device 308 from ALCD 302 with information, makes geo-location service device 308 can calculate the position of ALCD 302.If base station 306 is sending to information ALCD 302, make ALCD 302 can calculate its position, this process is called as " wireless assistant GPS ", and information is transferred to geo-location service device 308 from ALCD 302 when base station 306, when allowing geo-location service device 308 calculate the position of ALCD 302, this process is called as " GPS of network center ".

Geo-location service center (that is, the geo-location service device) 308 is also used 310 by signal 318 and geographic position and is communicated by letter, and communicates by letter with PSAP 312 by signal 320.These signals 318 and 320 can pass through Radio Link, maybe can by the land line phone net or other is based on cable network.

ALCS 300 can comprise two kinds of main service systems, and these two kinds of main service systems comprise ALCD 302 that has gps receiver and the geo-location service device 308 that contains the geographic position software module.In addition, there is two types back-up system: base station (" BS ") 306 infrastructure of network information transfer device are provided and can start PSAP 312 or geographic position terminal applies 310 systems that the geographic position network is served.

ALCD 302 can comprise the representative communication part of carrying out the CP function and be used for position calculation, pseudo-range is measured and the position determining part of other GPS function of carrying out at ALCD 302.Serial communication link or other communication link communicate communicating by letter between part and the position determining part, and a collection of hardware lines can be used for sending signal between two parts.

Fig. 4 illustration another of end-to-end system of ALCS 400 realize example.ALCS 400 shows the ALCD 402 that receives gps signal 404 from gps satellite constellation 406.ALCD 402 comprise the position determining part 408 that contains gps receiver client computer (not shown) and contain by, for example, the communications portion 410 of the CP part (not shown) that RS232 data link 412 connects.Communications portion 410 is communicated by letter with base station 414, communicates by letter with master server 416 by honeycomb fashion and/or honeycomb fashion/continental rise telephone network 415 in base station 414.Master server 416 is communicated by letter with application 420 with geo-location service device 418 by the continental rise or the wireless network that utilize ICP/IP protocol usually.

Gps signal 404 is also received by a series of benchmark receivers 422, and a series of benchmark receivers 422 calculate the position of benchmark receiver 422 and extract data from gps signal 404.To send to gps data center 424 such as the extraction data of time, doppler information, frequency etc., so that be used in all gps satellites in the GPS constellation 406.When needs, geo-location service device 418 extracts the data of using for ALCD 402 from gps data center 424, and data are sent to ALCD 402 or use 420.If desired, master server 416 also can with PSAP 426 handing-over, and if desired or necessary, can and put master server 416 and geo-location service device 418.

Depend on the wireless network that is using such as honeycomb fashion, PCS, two-way paging, PMR private mobile radio (" SMR "), Short Message Service (" SMS ") etc., the physics realization of ALCS 400 can be different from that shown in Fig. 3 and 4.Fig. 3 and 4 is for illustrative purpose, rather than means that restriction is applied to other wireless system with ALCS 400.And ALCS 400 can not depart from scope of the invention ground to be used with the hard-wired network such as landline telephone system, LAN (Local Area Network) etc.

Fig. 5 illustration another of ALCS 500 realize example.ALCS 500 receives gps signal 502 from GPS constellation 504.ALCD 506 can comprise position determining part 508, server 510 and the CP part 512 that contains the gps receiver that also is called client computer.Server 510 and CP 512 can be included in the communications portion 514.In ALCS 500, server 510 is commonly called " thin server ", because it does not have the same capabilities of server (that is, communications portion 410) as described in Figure 4.ALCS 500 utilizes also the GPS benchmark receiver 516 from GPS constellation 504 received signals 502, and gps data is stored in the data center 518.When using 522 requests, maybe when the ALCD 506 that uses server 510 to send back and forth asks, this information is sent to master server 520 between CP part 512 and client computer 508.ALCS 500 allows some auxiliary datas as the ephemeris to be stored on the server 510 among the ALCD 506, offers client computer 508 then as required.

Utilize the multi-mode GPS operation of wireless network

As mentioned above, can look such as signal intensity, operator get involved, required or institute asks type, the performance expectation value of serving, for example, many variablees of several seconds to tens of seconds TTFF etc. and deciding are with different mode operation A LCS.The operation of every kind of pattern is described below.

Stand-alone mode

Under the GPS stand-alone mode, be arranged in ALCD 304 position determining part gps receiver with irrespectively operate by base station 306 and signal path 316 and the cordless communication network that ALCD 304 carries out signal communication.Position determining part is obtained gps signal 314, and utilizes signal 314 to determine the geographic position of ALCD 304.Position determining part also is used for following function with gps signal 314, and if desired, is used for navigation feature.ALCD 304 allocation really is used in the inside of ALCD 304.

Autonomous mode

Under the GPS autonomous mode,, for example, do not obtain the position of honeycomb fashion or any assistance of other communication network ground calculating ALCD 304 by the position determining part among the ALCD 304 in the mode identical with the GPS stand-alone mode.But, replacement with ALCD 304 really allocation be used in the inside of ALCD 304, under the GPS autonomous mode, ALCD 304 by cordless communication network with ALCD 304 really allocation send back to communication network (for example, geo-location service device 308, use 310, PSAP 312 etc.).

The network assistance pattern

Can in ALCS 300, realize different operator schemes so that the position determining part among the ALCD 302 utilizes cordless communication network that some positional informations are delivered to position determining part, obtain, " assisting " gps receiver in tracking and the navigation feature.Such information comprises other supplementary that year calendar or attached almanac information, coarse position information, doppler data, observation gps satellite position, time and frequency supplementary, the intensity that receives radio signals (making by analogizing what expection is gps signal intensity had clear) or assistant GPS receiver obtain, navigate or follow the tracks of.Such situation may occur in ALCD302 and have the limited sky visual field, or when can not obtain enough gps signals alone, because being blocked maybe, ALCD 302 can not obtain gps satellite signal, or because multi-path problem, such situation may occur in ALCD 302 when can not follow the tracks of gps satellite.And, decide on given incident, for example, call out when send E911 from ALCD302, the user wishes extremely short TTFF, or in order to improve precision or to comprise complementary network information owing to other reason in GPS calculates, such situation also may be caused by the user.

GPS network assistance means are different from GPS network center (being also referred to as network assisted mode in other known references) means, because in GPS network assistance means, position determining part finally obtains ALCD desired position, location and trace information voluntarily.As in the list of references of Krasner, discussing, GPS network center means can not only be utilized the position of determining mobile device from the outside GPS information that obtains of wireless network, because position calculation is to finish on the base station of wireless network inside, rather than in ALCD 302, finish.

And as described at ALCS 300, in case carried out initially obtaining, GPS network assistance means allow to switch between GPS stand-alone mode, GPS autonomous mode or other pattern.Even under weak signal environment, the GPS network assistance pattern of ALCS 300 and structure also allow to carry out the tracking of customer location under GPS autonomous mode or GPS stand-alone mode, for example, upgrade continuously.The network-assisted structure of the GPS of Krasner relies on network assistance to calculate subsequent position usually continuously.

GPS network assistance pattern only is used for obtaining gps signal usually under weak signal environment.In case the acquisition gps signal, the gps receiver of ALCD 302 need not network assistance just can follow the tracks of gps satellite 304.The GPS network assisted mode of Krasner requires the gps receiver in the network-assisted mobile device to follow the tracks of and obtain.

Pattern Network Based

Pattern Network Based also can be used for the situation that gps receiver can not receive any gps signal.Like this, ALCD 302 relies on cordless communication network to obtain any locating information fully, and like this, the information that " concentrating " cordless communication network is sent.Usually, pattern Network Based is not used GPS or other satellite information ground calculating location.The position of ALCD 302 is from Internet resources, and for example, honeycomb fashion sends in tower and the TDOA technology and derives.Therefore, pattern Network Based can be used on ALCD 302 when being in the zone that can not receive the GPS that determines ALCD 302 positions or other locating information.

Reverse auxiliary mode

Oppositely the auxiliary mode gps receiver that can be used among the ALCD 302 receives strong gps signal once more, and when containing up-to-date ephemeris or almanac data, or when not needing accurate location.Similar with GPS autonomous mode and GPS stand-alone mode, under reverse auxiliary mode, position determining part does not receive any auxiliary, therefore, irrespectively operates with any available external network or external accessory.Under reverse auxiliary mode, position determining part is obtained gps satellite signal, and utilizes those gps signals to determine the geographic position of ALCD302.Position determining part also can be used for following function with gps satellite signal, and if desired, is used for navigation feature.But, replacement will determine that the position is used in the inside of ALCD 302, under reverse auxiliary mode, ALCD 302 sends to the communications portion of wireless device and/or the external network as the cordless communication network with all kinds metrical information on the gps receiver, is used in the cordless communication network.

Oppositely auxiliary mode can be used for supply position information, correct time, speed, orientation and benchmark gps clock, because position, speed and orientation are very useful for plot planning and power management.

It is oppositely auxiliary that plot planning and frequency are utilized again

In cellular communications system, oppositely auxiliary mode can be used for plot planning and improves frequency and utilize.Along with cellular communications system is constantly perfect, they are more customer service, thereby cause and will add in the cellular system in the more radio channel adding sub-district or with new sub-district.Reverse auxiliary mode allows the additional frequency in the sub-district to utilize again or code utilizes again, because wireless communication system can utilize (for example, utilizing the antenna of phased-array technique) beam control of clever antenna or pack to concentrate on shaping antenna transmission bundle on each Wireless Telecom Equipment.

Fig. 6 illustration be positioned at the base station 600 of sub-district 602 in the example of cellular communications system 604.In cellular communications system 604, the high-power transmitter (not shown) on the base station 600 is generally the big geographic region service as whole sub-district 602.Because each radio channel F that high-power transmitter sends ₁606 usually need certain bandwidth, the radio channel of gained limited quantity make the service ability of cellular communications system 604 remain on low-level on, therefore the customer requirement of only a few available channel is remained on the high level.

In order to increase the quantity of the radio channel that spectrum allocation may is restricted, cellular services supplier utilizes transmission frequency usually again.Because the radio channel signal intensity descends with range index, and from must client enough far away using identical radio channel uninterruptedly usually, it is possible utilizing these frequencies again.Therefore, reach minimum in order to make the interference that causes like this, the cellular system designer will use the cell site of same radio channel frequency to be arranged in remote place usually.

But in order to add more radio channel, except locating the cell site that uses same frequency, cellular system uses several technology usually tactfully.Reduce the interference in other zone by a zone neutralization that radio signal is accumulated in the sub-district, directional antenna and rebasing/covering sending mode can improve the signal quality in the sub-district usually.The reduction of disturbing is reused more frequency, and therefore, directional antenna can be used for the cell division wedgewise, so that only some sub-district (for example, 1/3 or 120 °) is used for the single radio channel.Can reduce cutting apart like this in the zone interference usually with other sub-district.

Fig. 7 shows in two base stations 702 and 704 and utilizes three sum frequency F ₁, F ₂And F ₃Two sub-districts 706 and 708 in two exemplary base station 702 and 704 on utilize the realization example of the cellular system 700 of directional antenna.Sub-district 706 and 708 is divided into sector 710,712,714,716,718 and 720 respectively, and wherein, sector 710 has frequency F ₁, sector 712 has frequency F ₂, sector 714 has frequency F ₃, sector 716 has frequency F ₁, sector 718 has frequency F ₂, and sector 720 has frequency F ₃

Frequency assignation in the sector can utilize standard channel separation process to select.Usually, channel separation refer to distribute to each honeycomb fashion channel in the middle of the whole honeycomb fashion frequency spectrum actual band at interval.Usually, the honeycomb fashion channel with specific quantity is assigned to each cell base station.This channel is called as channel group.Frequency utilizes planning (for example, " N4 " or " N7 " planning) to use many channel group again in planning.For instance, utilize again in the planning (that is, N7 planning), have 21 channel group, on average be assigned to every group of 15 to 20 pairs of channels in the N=7 frequency.When using N=7 to utilize form again, because triplets ground is with alphanumeric allocated channel group, so there are 21 channel group.

Fig. 8 shows typical N 7 frequencies that 7 channels are assigned to many sub-districts as A, B, C, D, E, F and G and utilizes planning 800 again.Because convention is usually by alphanumeric allocated channel group.It is in two sub-district groups 802 and 804 at center that many sub-districts are arranged in respectively with center cell 806 and 808.

Improve the oppositely auxiliary of frequency capability

The advantage of utilizing again with frequency is similar, and oppositely auxiliary mode also can be used for improving the frequency capability that is used in the cellular communications system.Appearance along with " more clever " antenna as phased array or common beam control antenna, cellular communications system can be included in cell phone when moving, and can point to the antenna of cell phone when controlling antenna beam in the mode that keeps the communication link between cell phone and the base station.

Oppositely auxiliary mode makes gps receiver among the ALCD 302 can determine positional information about its position, speed and orientation, and that information is passed to the communications portion of ALCD 302.Then, the communications portion of ALCD302 can send to the base station with this information by the communication channel as the inverted access control channel.

When the positional information of known ALCD 302, the base station then can utilize the antenna beam with narrow bandwidth of pointing to ALCD 302 to arrive ALCD 302 by clever antenna transmission.Then, this antenna beam can be controlled according to speed and the orientation of the ALCD 302 that receives in the base station, so that keep and the signal communication of mobile ALCD 302.Those of ordinary skill in the art should understand, can utilize the known antenna technology as the phased-array technique to form and control antenna beam.

Fig. 9 illustration utilize the realization example of the ALCS 900 of reverse auxiliary mode.For instance, ALCS900 can utilize two sub-districts 902 and 904 to contain the reverse auxiliary mode of base station 906 and 908 respectively.Signal communication can be carried out with ALCD 910 by antenna beam 912 in base station 906, and signal communication is carried out by antenna beam 916 and the 2nd ALCD 914 in base station 908.

In Fig. 9, the primary importance determining section that is positioned at an ALCD 910 is determined the position of an ALCD 910.Then, first communications portion of an ALCD 910 is obtained positional information from the primary importance determining section, and it is passed to first base station 906.Similarly, the second place determining section that is positioned at the 2nd ALCD 914 is determined the position of the 2nd ALCD 914.Then, the second communication of the 2nd ALCD 914 part is obtained positional information from second place determining section, and it is passed to second base station 908.First base station 906 then utilizes the positional information of an ALCD 910 that first antenna beam 912 is adjusted to and points to ALCD 910.Along with ALCD 910 moves in sub-district 902, first base station 906 utilizes the positional information of an ALCD 910 who comprises the orientation and velocity that an ALCD 910 moves to control first antenna beam 912, so that the signal communication of a maintenance and an ALCD 910.

Similarly, second base station 908 then utilizes the positional information of the 2nd ALCD 914 that second antenna beam 916 is adjusted to and points to the 2nd ALCD 914.Along with the 2nd ALCD 914 moves in sub-district 904, second base station 908 utilizes the positional information of the 2nd ALCD 914 that comprises the orientation and velocity that the 2nd ALCD 914 moves to control second antenna beam 916, so that the signal communication of maintenance and the 2nd ALCD 914.

By oppositely assisting of the multiplexed raising frequency capability of spatial domain

Oppositely auxiliary mode also can be by the frequency capability in spatial domain multiplexed (" SDM ") the raising sub-district.Oppositely auxiliary mode makes the base station can be by several antenna beam are sent to a plurality of ALCD division of cells that are positioned at the sub-district from the base station.These a plurality of antenna beam can change in transmission range with being controlled and become to follow moving of ALCD.Like this, oppositely auxiliary mode makes the base station spatial domain in the sub-district can be used as the mode of a plurality of transmission signals of isolating a plurality of ALCD in the sub-district.Multiplexed similar with time, frequency and code domain, SDM can make the capacity of the frequency that sends in the sub-district improve.

Figure 10 illustration utilize reverse auxiliary mode so that improve the realization example of the ALCS 1000 of the frequency capability in the sub-district 1002 by SDM.As an example, there is shown the ALCS 1000 that contains sub-district 1002 and base station 1004.Can communicate by letter with 1008 with two ALCD1006 with 1012 by antenna beam 1010 in base station 1004.Along with ALCD 1006 and 1,008 1002 moves along the sub-district, the transmission power level of antenna beam 1010 and 1012 will be controlled and adjust in base station 1004, so that follow moving of ALCD 1006 and 1008.

Figure 11 illustration utilize reverse auxiliary mode and realize example so that improve another of ALCS1100 of the frequency capability in the sub-district 1102 by SDM.As an example, there is shown the ALCS1100 that comprises sub-district 1102 and base station 1104.Can communicate by letter with 1110 with ALCD1106,1108 with 1116 by antenna beam 1112,1114 respectively in base station 1104.Base station 1104 can be positioned at than on three ALCD1106, the 1108 and 1110 high height.In an example of operation, along with ALCD1106,1108 and 1,110 1102 moves along the sub-district, the transmission power level of antenna beam 1112,1114 and 1116 will be controlled and adjust in base station 1104, so that follow moving of ALCD 1106,1108 and 1110.

As previously mentioned, according to ALCD 1106,1108 and 1110 from the base station 1104 distance, base station 1104 can change and is used in the watt level that sends among the ALCD1106,1108 and 1110.Oppositely auxiliary mode also can be used to utilize ALCD1106,1108 and 1110 geographic position to help to determine to switch to the time (that is GPS assistant base station switching) of another base station (not shown).

Oppositely assisting of power management

Reverse auxiliary mode among the ALCS also can be used for power management, because oppositely auxiliary mode makes the base station can be according to the mobile change transmitted power of ALCD.Oppositely auxiliary mode makes base station transmitter can use lower transmitted power, and make from the power of ALCD lower because the antenna beam that forms or control has the gain than the bundle Tu Genggao of omnidirectional usually.Therefore, oppositely the feature of auxiliary mode helps to optimize communication link, and increase the capacity of very useful radio communication system base station in cdma network, because the Noise Background (floor) that the capacity of cdma network can increase when being subjected to more users to be on the network usually restriction, rather than limited by code efficiency.

Turn back to Fig. 9, along with ALCD 910 and 914 902 and 904 moves along the sub-district, base station 906 and 908 can change the transmitted power of antenna beam 912 and 916.Along with ALCD 910 and 914 more and more near base station 906 and 908, base station 906 and 908 can reduce the transmitted power of antenna beam 912 and 916.Along with ALCD 910 and 914 more and more away from base station 906 and 908, the transmitted power of antenna beam 912 and 916 can be improved in base station 906 and 908.

It is oppositely auxiliary that acceleration is obtained

Oppositely auxiliary mode also can in ALCS, be used for by provide split-hair absolute time and frequency reference to quicken to obtain and with the code synchronisation of external network as the wireless network.In case the gps receiver among the ALCD is locked on the gps signal from the GPS constellation of gps satellite, the gps clock in the gps receiver is with highly stable, and its value is approximately equal to 0.01/1000000th to 0.001 (" ppm ").On the contrary, preferably to have for many base stations are typical approximately 0.10ppm to the CP clock in the exemplary call processing section in the mobile device (for example, cellular phone).Consequently, by the CP clock that allows in the communications portion of the auxiliary ALCD of gps clock frequency reference, utilize the ALCS of reverse auxiliary mode to make the CP clock among the ALCD reverse auxiliary more stable and much accurate than not having, this causes the acquisition time of position determining part of ALCD shorter.

Move to and move auxiliary oppositely assisting

Figure 12 illustration utilize reverse auxiliary mode to move to move auxiliary ALCS 1200 another realize example.As an example, ALCS 1200 makes 1202 of ALCD that network 1206 is used as communication medium and assists the 2nd ALCD 1204 (by signal path 1208 and 1210).Wherein, an ALCD 1202 receives absolute time informations, Measurement Network time and from the difference between the gps time (by gps signal 1212) of GPS constellation 1213, and information is sent to network 1206 by signal path 1208.The 2nd ALCD 1204 of request GPS supplementary from an ALCD 1202 receive gps times and network time poor (by signal path 1208 and 1210 and network 1206), and proofread and correct the network time of this information, obtain gps time, to help its GPS acquisition process.

Oppositely auxiliary mode also can be used in ALCS 1200 from the frequency translation of an ALCD 1202 to the 2nd ALCD1204, wherein, the frequency error that to measure between network and GPS frequency in an ALCD 1202 sends to network 1206, and send to the part of new mobile device (that is the 2nd ALCD1204) as assistance information.This process can be embodied as the control command by the base station broadcast of network 1206.

In addition, oppositely auxiliary mode need not to utilize server to allow among the ALCS 1200 the direct GPS from an ALCD 1202 to the 2nd ALCD 1204 auxiliary (on network 1206).Directly GPS is auxiliary can be before the next user who resends on another auxiliary ALCD of request, and server (on network 1206) the intervention ground that need not of short duration storing aid information uses.As an example, position, effective ephemeris have been obtained, and an ALCD 1202 that may obtain network time and frequency error and GPS relation can be by network 1206 the base station with this information transfer any other ALCD to identical area, or this information is sent to a zone by MSC 1214.

Oppositely assisting of assisted network

Reverse auxiliary mode among the ALCS also can be used for wireless network and monitor, wherein, middle heart in network, each ALCD assembling position information from request assistance, and wireless signal strength or any location dependent information, portfolio in watch-keeping cell footprint, the single subdistrict, the place of service set, the zone of wireless receiving difference add new base station or settle their decision again to help to make.Service quality can be by being used in all the ALCD real time monitorings in this zone.

Reverse auxiliary mode among the ALCS also allow difference constantly the several ALCD from the same area receive the time migration of external network analog network and the frequency drift of redundancy times and/or frequency reference information, and predict its future value.Like this, even not after any ALCD receives the interval of information, network also can send to the timing assistance information new ALCD.

Reverse auxiliary mode among the ALCS also can be used for correcting the multi-path problem on the client computer of ALCD, because can assist simulating multi-path and/or simulation tool is provided, with the multipath reception problem on the client computer of given initial position that help to correct ALCD based on the land wireless communication system.

And the velocity information that the reverse auxiliary mode among the ALCS also allows to be used to the gps receiver in ALCD assists wireless communication system to aim at phaselocked loop (" PLL "), to solve and the relevant problem of ALCD motion.Especially, oppositely auxiliary mode is by being used to the absolute ALCD velocity information guiding radio tracking ring from the position determining section, thereby allows radio operation under low radio signal strength, can increase effective wireless area radius.

Expand autonomous mode

If external network is the required fiduciary level of transmissibility not, or network do not have supporting capacity, and ALCS can be called under the operator scheme that expands autonomous mode, utilizes other pattern or out of Memory source to expand the autonomous or GPS stand-alone mode of GPS.Expanding autonomous mode can use with bluetooth, Institute of Electrical and Electric Engineers (" IEEE ") 802.11 (being commonly referred to as " Wi-Fi ") and/or other sensor as pressure gauge, accelerometer or gyroscope, provides auxiliary in the outside of the network that is used to communicate by letter to ALCD.For example, expanding autonomous mode can utilize the bluetooth transmitters in each floor of high-rise structures that the geographic position and the floor information of bluetooth transmitters sent to ALCD, and the ALCD in buildings can not obtain to send this " extend information " under the situation of gps signal, so that send locator data.And, when scheduled event takes place, expand autonomous mode and allow ALCD to switch to another kind of pattern from the GPS stand-alone mode, for example, auxiliary mode, GPS network center pattern etc.This scheduled event can comprise and passed through the power cycle etc. that the schedule time amount, the ALCD that do not obtain gps satellite signal fail to receive the predetermined number of seconds of any gps signal or the number of minutes etc., design.

Figure 13 shows the realization example of the ALCS 1300 in the interior room of buildings 1302.ALCS 1300 can comprise ALCD 1304 and position module.Position module can comprise wireless and/or wired transmitter again of gps signal or other location information signal.As an example, position module can comprise the transmitter again of fixing in " EXIT " label 1306 in room 1302 in the buildings or the corridor or another the similar fixed location device 1308.As an example of operation, ALCD 1304 can receive wireless auxiliary signal from position module (for example, respectively from the signal 1310 and 1312 of EXIT label 1306 or fixed location device 1308) or from wired auxiliary signal 1314 of fixed location device 1308.Auxiliary signal can provide time reference, ephemeris or other similar GPS auxiliary data.Auxiliary signal also can provide the non-GPS type position data as the information relevant with the fixed position of fixed location device 1308.This information can comprise the address of buildings, the floor of buildings, the number in room 1302 or the position of corridor and room 1302 internal fixation location device 1308.

Similarly, Figure 14 shows the realization example of position module of the ALCS 1400 of the intersection point that is positioned at four city pieces 1404 that contain many buildingss 1406.Position module can comprise wireless and/or wired transmitter again of gps signal or other location information signal.As an example, position module 1408 can comprise the fixing transmitter again in light beam, Road sign or other the similar fixed location device.As an example of operation, the ALCD (not shown) can receive the wireless auxiliary signal from position module.Auxiliary signal can provide time reference, ephemeris or other similar GPS auxiliary data.Auxiliary signal also can provide the non-GPS type position data as the information relevant with the fixed position of fixed location device 1408.This information can comprise the address of intersection point 1402, corner or other similar information of intersection point 1402.

Other pattern

Independent with GPS, GPS autonomous, like GPS network assistance or the mode class Network Based under other pattern, ALCS also can receive information from the outside of radio communication cellular network and the outside of gps satellite system.For example, under other pattern, the position determining part of ALCD can receive the information from gps satellite and blueteeth network and/or IEEE802.11 Wi-Fi network when utilizing radio communication cellular network to send voice or data.GPS obtains, tracking and navigation feature can not utilized cellular network, but is used to improve from the input of blueteeth network and/or IEEE 802.11 networks.

And the demonstrative structure of ALCS can be generalized to the cable network as telephone network or data network with not departing from the scope of the invention.For example, if laptop computer or PDA have the GPS ability, and equipment is connected with wired or wireless the Internet link, can calculate by the Internet assistant GPS, to calculate the position in the buildings.Can locally show this position or it is sent to server.Such realization example of ALCD can be used for maintaining secrecy or other phone or hard-wired system application.

The comparison of operator scheme

Operator scheme of the present invention allows to have further dirigibility in the framework of gps receiver.Require constraint when gps receiver is not subjected to short TTFF, be not subjected to network wide constraints, or when not being subjected to other demand signals constraint, gps receiver of the present invention can be programmed to the given obtaining mode of automatic selection.For example, when Network was busy, this can be construed to the narrow bandwidth availability in the cordless communication network, and the present invention allows the automatic or manual cordless communication network of autonomous mode or the stand-alone mode select not rely on to(for) supplementary of user.Equally, when geographical location server 108 use busy, and the supplementary stand-by period with require when incompatible, the user can be automatically or manual the selection independently or stand-alone mode.But, if the additional bandwidth in the wireless network is available, if or need lack TTFF for the E911 calling party, the present invention allow with autonomous independent manipulation mode manual or reset to automatically autonomous or independent (if ephemeris be current with have implicit supplementary), Network Based or network assistance pattern.

If it is available that the multi-mode structure of ALCS makes, can utilize network-assisted automatic seamless and the reliable response of making, and if assist unavailable or be not in time available, make the ALCD independent operation.The network assistance operator scheme has overcome the startup limitation of the autonomous or GPS stand-alone mode of GPS, and makes the performance level identical with pattern Network Based, but does not need continuous network connectivty after startup.If ALCD has received auxiliary data (ephemeris, apparent position, time proximity etc.) on some communication mediums, when the function of ALCD has started, can cut off communication link.This is that thin server is directly installed on storage and retransmission method on the ALCD.The seamless character of ALCD structure and dirigibility make the ISP adjust ALCS to satisfy their needs according to the ability of network and the type of required service.

And type or ALCD that the selection of operator scheme may depend on service ask or permissible accuracy to ALCS.For example, call out if the user sends E911, the gps receiver among the ALCD can be in the pattern that precise position information is provided as far as possible the most in time automatically.The sort of pattern can be based on network, if but network can not be supplied the complete GPS message block that the gps receiver that makes ALCD can be determined position calculation information, position determining part among the ALCD can switch to the network assistance pattern, so that utilize the processing power of network and position determining part concurrently.As another example, if the user asks to point to the direction of ad-hoc location, ALCD can select in time to provide information automatically, but the processing power of power supply and ALCD is not applied the autonomous or GPS stand-alone mode of GPS of such requirement.And ALCS makes the user can reset the automatic selection of operator scheme.In case obtain scheduled event (for example, the primary importance of position determining part is calculated), ALCD also can switch between pattern.For example, call out if send E911, ALCD can select the network assistance pattern, so that as far as possible promptly obtain the positional information of ALCD.In case sent that information, and calculated primary importance, ALCD then can switch to different mode (for example, GPS autonomous mode or GPS stand-alone mode), so that make the additional bandwidth in the cordless communication network can be used for other user.For the purpose of maintaining secrecy, the structure of ALCS also allows to receive supplementary, and provides acceptance that the position is sent to network to the user, if or the user want to keep the secret of ALCD position, " locking " only can be used for user's selection in ALCD.

For example, by each use access to netwoks is being licensed under user's the situation, even ALCD defines necessary online to satisfy customer requirements, the structure of ALCS also allows the user to select to avoid the network connection is used for assisting.In this example, the position determining part original performance that may not reach the user is attempted to provide the position under the GPS stand-alone mode with requiring.

ALCS allows the bandwidth of such management of wireless communications network, promptly can more effectively utilize bandwidth.And ALCS allows dynamic assignment to comprise the Internet resources that can be used on the processing on the ALCD, so that parallel processing information as much as possible.So just allow dynamic loading GPS client computer and webserver processor, so that more effectively be a plurality of ALCD calculating locations.This means allow to increase the ALCD number of users, and can not have a strong impact on the infrastructure of wireless communication system.

Many correlator configuration

In order to assist ALCS, can utilize a plurality of correlators make from GPS autonomous or GPS stand-alone mode to the conversion times of network assistance or pattern Network Based less will shorter TTFF, more the exact position or more reliable results offer ALCD.

Distributed clever client/server configuration

Obtain by allowing the communications portion (being also referred to as server) of gps receiver in the position determining part (being also referred to as client computer) of ALCD and ALCD distribute intelligently, the operating load of tracking and navigation task, ALCS make obtain faster and make the TTFF time shorter, and allow the power supply of off-position determining section part or optionally to the power supply of position determining part part, so that reduce the power consumption of the GPS part of ALCD.

The structure of ALCS also allows to utilize the network assistance mode to identify almanac data (for example, confirming storage almanac data quality) in advance, and is still effective with the storage almanac data on the gps receiver in the verification determining section.Similarly, the network assistance pattern allows ALCD to derive can be used for the rough position data that rough position obtains situation, wherein, is used for physical location based on the time mark apparent position of the aftertreatment of known ephemeris or year calendar and data and determines.In addition, of No. the 6th, 671,620, the United States Patent (USP) that quotes in full for your guidance, be presented to people such as Gar in hereby, the rough position data also can be used in the remote server with current almanac data.

Other pattern (for example, expanding autonomous mode) also allows to utilize the low-power short-range wireless technology as the bluetooth, shortens the TTFF time with the aided location determining section, and utilizes the approaching position determining part of low-power short-range wireless technology aided location.

ALCD also allows by switching between or the GPS stand-alone mode and the network assistance pattern autonomous at GPS, or by remaining under the network assistance pattern, via cordless communication network control information is sent to ALCD, so that slowly change error, obtain accurate local location (for example, Iono correction factor, new attached almanac information etc.).ALCS also allow from be also included among the ALCD various information sources (for example, accelerometer, pressure transducer, tiltometer etc.) data " fuse together ", to improve the precision that the position is determined, and will be similar to position, time and frequency information and offer ALCD, make the TTFF time that more accurate position is determined and/or improved each client computer to assist ALCD.

Time and frequency are auxiliary

Radio Network System contains the high-quality reference clock usually, and chien shih some Radio Network Systems as CDMA are synchronous during according to absolute GPS.ALCS allows the wireless network frequency reference is transferred to the position determining part of ALCD, with the skew of estimating GPS clock frequency, and significantly reduces the frequency uncertainty.The gps time benchmark can be transferred to position determining part and become the gps clock time.The fundamental purpose of time and frequency translation is to reduce the uncertainty of ALCD clock time and frequency, therefore improves TTFF.This time shifts and also can promote sensitivity to improve.

Time shifts

Figure 15 illustration with the combine block scheme of exemplary realization of the time transfer device that uses of ALCS 1500.In this example, as the wireless network that utilizes CDMA or GSM and location measurement unit (" LMU "), chien shih ALCS 1500 is synchronous during according to absolute GPS.Usually, gps time benchmark 1502 is transferred to the GPS part of ALCD (not shown), so that make gps clock time and gps time synchronous.In this example, in ALCS, can divide three step deadlines to shift.

In first step, can make base station (" BS ") clock 1504 and gps time benchmark 1502 synchronous.The time precision of BS clock 1504 depends on system configuration, can be in 100 to 300 nanoseconds scope.This is the built-in specific function of some type network normally.

In second step,, make CP clock 1506 and BS clock 1504 synchronous by the prime frame that sends to CP clock 1506 from BS clock 1504, regularly receiving a particular event.BS clock 1504 is sent in the prime frame of absolute GPS predictable primary transmitting time in the time with 300 nanoseconds precision.Synchronous error between BS clock 1504 and the CP clock 1506 by the RF reference point in BS clock 1504 signals, in the BS clock 1504 group delay, cause by group delay and ALCD structure in the signal transmission time due to the distance between ALCD and the base station, the CP part.

As long as the ALCD tracking base stations, the CP of ALCD part just can be known the absolute GPS time, and can predict in the product integration stage, rather than measure in real time with the ALCD that adjusts on the closing precision mutually of gps time.If ALCD loses the clue of base station or BS clock 1504, the precision of CP clock 1506 is with variation.The degradation of CP clock 1506 can be according to common CP clock 1506 frequency stabilities and the last time limit prediction of representing with the Allan variance of following the tracks of.

ALCS is designed to air interface irrelevant.Because cell phone (promptly, ALCD) fabricator knows the frequency stability and the air interface performance of tracking condition, CP clock 1504, and the cell phone fabricator can determine to provide the model that shifts the absolute GPS time and/or with the interface of gps clock 1508 with comprise the preferred or best approach of the closing precision mutually of all uncertain influences.

In third step, gps clock 1508 by ALCD position determining part and the communication link between the communications portion of ALCD to CP clock 1506 request time Transfer Messages.Usually, this time transfer request message does not comprise parameter.

The communications portion of ALCD can be reacted to such message with several different modes.Communications portion can generate accurate timing incident and time of return transfer response message.The normally effective or effective single rectangle pulse of negative edge of rising edge of timed events.The time transfer response message comprises time, second number in this week and the time uncertainty that shows with stopwatch of the timed events of representing with GPS week usually.By utilizing regularly timed events of gps clock 1508, make the time synchronized of gps clock 1508 and CP clock 1506.

Communications portion can also send back to position determining part with " Δ " message.For example, communications portion or position determining part can monitor CP clock 1506 and gps clock 1508.When time of making during transfer request, the whichever part is just in watchdog timer, and communications portion or position determining part all receive gps time 1502, and carry out difference and calculate between gps clock 1508 and gps time 1502.This Δ can be used for GPS calculating and position then and determine, shift up to the time that please look for novelty.

When position determining part begins new search to new gps satellite, need timing information usually.Can under the request of position determining part, periodically make regularly synchronously.Because last reference clock and/or frequency because of the quality of gps clock 1508 sends, can be used for searching for effective time, precision may be in time and variation; But, reduced or eliminated at the described means of ALCS gps clock 1508 be locked on the CP clock 1506, and allowed CP clock 1506 be locked in needs on the gps time benchmark 1502 by BS clock 1504.Time uncertainty when the frequency stability of gps clock 1508 (representing with its Allan variance and with the frequency stability of temperature) can be used to predict gps satellite signal search beginning.The auxiliary ALCD of ALCS is the predicted time variation influence correctly, so that the select time migration period, and realization time transfer since the selection of control gps clock 1508, and make the time of making search next time under the control of ALCS.

Frequency translation

Figure 16 illustration with the combine realization example of the frequency translation structure used of ALCS 1600.In this example, ALCS 1600 and cellular telephone system, for example, the cdma system that is used in the U.S. that each base station (" BS ") has the high-quality reference clock operation that combines.System ALCS 1600 shows can be by following with BS clock 1602, and relevant BS clock 1602 frequency translations are transferred to gps clock 160, so that the frequency shift (FS) of estimating GPS clock 1606 where necessary then to CP clock 1604.

Usually, the communications portion (not shown) of ALCD is followed the tracks of wireless network signal, and measures CP clock 1604 frequency shift (FS)s with respect to BS clock 1602.CP clock 1604 frequencies after this measurement are uncertain to be caused by BS clock 1602 frequency shift (FS)s that describe in detail by network standard, ALCD tracking loop performance, CP clock 1604 frequency stabilities and ALCD motion usually.

Communications portion then periodically sends to position determining part with frequency reference message, and wherein, this message comprises the frequency error between CP clock 1604 and the BS clock 1602 usually.Frequency reference message is being passed through the ALCD ability, and according to sending in the definite interval of the necessity of gps clock 1506 and/or the 1604 requirement renewals of CP clock.For example, if gps clock 1606 and CP clock 1604 both are high quality crystals, can both be that the inferior quality crystal does not send updating message more continually such as fruit gps clock 1606 and CP clock 1604, or only send updating message once in some cases.But the cycle that frequency error upgrades can be selected by the ALCD fabricator.Because the speed with himself as described below compares gps clock 1506 and CP clock 1604, any CP clock 1604 between the frequency reference message all will make the uncertainty of gps clock 1606 increase with respect to 1602 drifts of BS clock.The another kind of method that CP clock 1604 is set is that CP clock 1604 is aimed at received signal and synchronous with BS clock 1602.

As be hereby incorporated by reference, the 5th, 841, No. 396 other the such means of United States Patent (USP) the Krasner of being presented to have described gps clock 1606 have been locked in phaselocked loop means on the CP clock 1604.ALCS 1600 has avoided adjunct circuit and has shifted as the signal between described CP part of Krasner means and the GPS part.This causes ALCS 1600 to be easier to and realizes existing honeycomb fashion, wireless or cable telephony system more at an easy rate.

Figure 17 illustration with the combine block scheme of realization example of the frequency translation structure used of ALCS 1700.ALCD 1701 can remain on the sum frequency error that gps clock 1702 is not locked in the restriction that the sum frequency error budget on the CP clock 1704 applies.ALCD 1701 can comprise GPS part 1706 and the interior CP part 1708 of communications portion (not shown) in the position determining part (not shown), and gps clock 1702 and CP clock 1704.ALCD 1701 fabricators can decide to design the particular bound of message cycle on the Allan variance characteristic of utilizing benchmark message to adjust remaining budget frequency error after frequency and/or time and CP clock 1704.The information that sends is relative error of the frequency, rather than absolute error (with hertz " Hz " expression), because GPS part 1706 is not known the absolute frequency of CP clock 1704.Message and nominal CP clock 1704 frequency-independents that GPS part 1706 needs.

GPS part 1706 and gps clock 1702 utilize the uncertain information optimization signal acquisition performance of CP clock 1704 frequencies.Except ALCD 1701 motions, all things in the error budget all depend on the structure of radio infrastructure and CP part 1708.CP part 1708 periodically sends a message to GPS part 1706, this message with hertz CP clock 1704 nominal frequencies of representing (for example comprises, to divide the frequency of CP clock 1704 to send to counter 1710 by CP part 1708 and be measured, so that the absolute frequency error is transformed into relative error of the frequency), the relation and the CP clock 1704 frequency shift (FS) uncertainties of CP clock 1704 relative frequencies skews and BS clock (not shown) frequency.

The relative frequency that GPS part 1706 then utilizes counter 1710 to measure between gps clock 1702 and the CP clock 1704.The effective width of counter enabling signal is determined by the pulse of the predetermined gps clock 1702 of counting.Be used for determining relative frequency between gps clock 1702 and the CP clock 1704 in the number of CP clock 1704 pulses during this enabling signal.

Frequency drift between the transmission frequency reference information depends on the A11an variance and its stability with temperature of gps clock 1702.Can look the quality of the maximum frequency error of distributing to gps clock 1702 and gps clock 1702 and set the tone to haircut and send cycle between the frequency reference information.In a kind of alternative realization, or, frequency divider can be inserted between CP clock 1704 sum counters 1710, therefore reduce the absolute frequency that counter 1710 is measured for the ease of realizing.This process prescription this quote in full for your guidance, people such as on January 27th, 2004 was presented to Garin and denomination of invention for No. the 6th, 684,158, the United States Patent (USP) of " method of agps system " in.

In Figure 18, show the process flow diagram that illustration is used to implement the step of the example procedure that ALCS carries out.This process is since 1802, square frame 1804 illustrations on ALCD, receive at least one signal from least one gps satellite, wherein, ALCD can optionally switch between GPS stand-alone mode and at least a other pattern.Square frame 1806 illustrations periodically frequency reference message is sent to ALCD.Square frame 1808 illustrations utilize at least one signal and frequency reference message to determine the geographic position of ALCD.In step 1810, finish this process then.

Process among Figure 18 can be carried out by hardware or software.If carry out this process by software, software can reside in the software memory (not shown) among the ALCS.The ordered list that software in the software memory can comprise the executable instruction that realizes logic function (promptly, can be with the digital form as digital circuit or source code or with picture mimic channel or picture analog electrical signal, " logic " that the such such analog form in module source of voice signal or vision signal realizes), can optionally be embodied in any computer-readable (or signaling bearer) medium, for instruction execution system, device, or equipment, for example, based on computer system, comprise processor system, or can be optionally from instruction execution system, device, equipment other system of taking out instruction and execution command uses or with they uses that combines.Under the background of presents, " computer-readable media " and/or " signal bearing media " be can comprise, store, pass on, propagate or transmit for instruction execution system, device equipment uses or with they combine any instruments of the program used.Selectively, computer-readable media can be for example, but to be not limited to electricity, magnetic, light, electromagnetism, infrared or semiconductor system, device, equipment or communications media.The more specifically example of computer-readable media " non-exhaustive list " comprises as follows: the electrical wiring (), portable computer diskette (magnetic), RAM (), ROM (read-only memory) " ROM " (), EPROM (Erasable Programmable Read Only Memory) (EPROM or flash memory) (), optical fiber (light) and the portable compact disc storer " CDROM " (light) that contain one or more lead.Please note, computer-readable media even can be paper or program printed superincumbent another kind of suitable medium, because can pass through, for example, photoscanning paper or other medium electric fishing obtain program, then, and if necessary, compile in a suitable manner, explain or handle it, then it is stored in the computer memory.

GPS engine-trace device structure

Those of ordinary skill in the art should understand, though described gps receiver in this application, but also can utilize contain the GPS engine the GPS tracker equipment (promptly, " GPS tracker " or " GPS base band tracker ") the realization position determining part, the GPS engine can only be measured gps data, then measurement data is sent to the primary processor that is positioned at GPS tracker outside.In this example, primary processor can be as Fig. 2,4 and 5 described communications portion.The GPS engine is the equipment that contains GPS tracker hardware.In general, gps satellite is obtained and followed the tracks of to the GPS engine hardware, and the raw measurement data measurement pseudorange data of gps satellite (for example, from) is sent to primary processor be used for position calculation.As an example, the GPS engine can utilize and can realize from the parts that San Jose city, California SiRF Technology, Inc. obtains.For example, the RF interface circuit can be embodied as the GRF2i/LP integrated circuit.Then, the position treatment circuit can be embodied as, for example, and GSP2t integrated circuit or GSP2e integrated circuit.Because the GPS engine obtains and follows the tracks of gps satellite, raw measurement data is sent to different primary application programs then and move navigation software concurrently (for example, the software of SiRFNav or similar type) primary processor, such GPS engine hardware makes the overhead on primary processor and the operating system drop to minimum by making raw measurement data remain on low-level go up (for example, measurement data of per second) to the maximum transmission rate of primary processor.Navigation software then calculates position, time and the speed of GPS engine apparatus.Utilizing navigation software to realize that the example of GPS engine is described on July 18th, 2002 submitted to, denomination of invention is the U.S. Patent application the 10/199th of " tracker structure of gps system ", No. 253, on June 6th, 2005 submitted to, denomination of invention is the U.S. Patent application the 11/149th of " based on the main frame global position system ", No. 438 submissions on October 10th, 1 2002, denomination of invention is the U.S. Patent application the 10/269th of " based on the main frame global position system ", No. 914 continuation, on October 10th, 2002 submitted to, denomination of invention is the U.S. Patent application the 10/269th of " layering is based on main frame satnav solution ", No. 105 and on October 10th, 2002 submit to, denomination of invention is the U.S. Patent application the 10/269th of " based on the navigation processing in the main frame satnav solution ", in No. 104, the application quotes in full all these applications for your guidance.

As another example, the GPS engine can utilize and can realize from the parts that California Sunnyvale city Trimble company obtains.As an example, the GPS engine can utilize Trimble company to comprise two integrated circuit and FirstGPS ^TMThe FirstGPS of software ^TMStructure realizes.These Trimble integrated circuit provide to be carried out processor strengthen GPS tracking and Processing tasks and host CPU can be born other application program ground of moving paces calculating physical location, speed and time " PVT " with it on equipment) GPS " measuring table " of answer.

Similarly, the GPS engine also can utilize the parts realization that obtains from San Jose city, California Global Locate company.As an example, the GPS engine can utilize the both to realize from the GL-2000GPS baseband processor integrated circuit and the integrated front end integrated circuit of GL-LN22 GPS of Global Locate company.In this example, the integrated front end of GL-LN22GPS comprises and simplifying and gps signal that frequency downconversion receives and they are digitized into the RF signal processing circuit of the baseband signal of confession GL-2000GPS baseband processor.GL-2000 comprises the function that the management gps signal is handled.It obtains and handles available gps satellite signal, and the gps signal processor on the GL-2000 carries out frequency and code domain search, instrumented satellite scope and scope rate information, and decoded navigation date information.Then, measurement result is sent to primary processor (for example, the primary processor on the cellular phone).

Further, the GPS engine also can utilize the parts realization that obtains from San Diego city, California QUALCOMM company.As an example, the MGP6200 that the GPS engine can utilize QUALCOMM to produce ^TMMulti-mode GPS processor integrated circuit realizes, and the GPS engine can comprise that also picture is also from the RGR6200 of QUALCOMM ^TMThe RF front-end circuit that the GPS radio receiver is such.In this example, RGR6200 ^TMThe GPS radio receiver comprises to be simplified and gps signal that frequency downconversion receives and they are digitized into confession MGP6200 ^TMThe RF signal processing circuit of the baseband signal of multi-mode GPS processor processing.RGR6200 ^TMThe GPS radio receiver comprises the function that the management gps signal is handled.It obtains and handles available gps satellite signal, and RGR6200 ^TMGps signal processor on the GPS carries out frequency and code domain search, instrumented satellite scope and scope rate information, and decoded navigation date information.Then, measurement result is sent to picture also from the MSM200 of QUALCOMM ^TMThe primary processor (for example, the primary processor on the cellular phone) that transfer table modulator-demodular unit base band integrated circuit (that is, " chipset ") is such.

Will also be appreciated that realizing as another that example, signal chip group can be integrated becomes to have integrated one-tenth and contain the GPS engine of a plug-in unit of discrete function " IP " part and the discrete function of baseband chipsets.Should understand, IP section (being also referred to as " intellecture property core " or " the IP kernel heart ") comprises that integrated circuit (promptly, any code of any software in design code chipset) and the embedding chipset, the two can be incorporated into the IP kernel heart in their product fabricator to be lower than the cost of buying the separate chip group that is integrated.As an example, the integrated chipset of signal can be to utilize

The MSM from QUALCOMM of technology ^TMFamily's chipset.

In Figure 19, show the block scheme of realization example of the ALCD 1900 of the GPS engine 1902 that utilizes in the position determining part 1904 and the primary processor 1906 in the communications portion 1912.GPS engine 1902 can comprise GPS front end 1910 and GPS processor 1912.GPS front end 1910 can carry out signal communication by signal path 1916 and antenna 1914.In addition, GPS processor 1912 can be respectively by signal path 1918 and 1920 and GPS front end 1910 and primary processor 1906 both carry out signal communication.

In an example of operation, the gps signal 1922 that GPS engine 1902 can receive from several gps satellite (not shown) from antenna 1914 on GPS front end 1910.The gps signal 1922 that GPS front end 1910 is simplified and frequency downconversion receives, and they are digitized into the baseband signal that passes to GPS processor 1912.GPS processor 1912 then obtains and follows the tracks of gps satellite from the gps signal 1922 that receives, then original pseudo-range measurement data is sent to the primary processor 1906 of operation navigation software 1924.The original pseudo-range measurement data that primary processor 1906 then provides according to GPS engine 1902 is determined the position of ALCD 1900.

Communications portion 1908 also can receive aforesaid position auxiliary signal 1928 by antenna 1926, determines its position to assist ALCD 1900.Realize that at this primary processor 1906 can be determined the operator scheme of aforesaid ALCD 1900 in example.Whether can detect and receive gps signal 1922 according to GPS engine 1902, primary processor 1906 can be determined the operator scheme of position determining part 1904.These patterns can be that GPS is independent, GPS autonomous, GPS network assistance, GPS network center, Network Based, oppositely auxiliary and expand autonomous mode.

Though described various embodiment of the present invention, apparent for the person of ordinary skill of the art, many embodiment and realization can be within the scope of the present invention.So except according to appended claims and the equivalent thereof, the present invention is unrestricted.

Claims (144)

1. an aided location communication system (" ALCS ") comprises:

The geo-location service device; With

Aided location communication facilities (" ALCD ") comprising:

With the geo-location service device carry out signal communication communications portion and

The position determining part that contains the GPS engine,

Wherein, communications portion can optionally be switched between following pattern:

Determine ALCD the geographic position the primary importance deterministic model and

Determine the second place deterministic model in the geographic position of ALCD.

2. ALCS according to claim 1, wherein, the selectivity switching is determined to take place simultaneously with the geographic position of ALCD basically.

3. ALCS according to claim 1, wherein, the geo-location service device receives at least one gps signal from least one gps satellite.

4. ALCS according to claim 1, wherein, communications portion can be optionally sends to the geo-location service device with the geographic position of determined ALCD.

5. ALCS according to claim 1, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

6. ALCS according to claim 1, wherein, the primary importance deterministic model is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

7. ALCS according to claim 6, wherein, second place deterministic model is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

8. ALCS according to claim 7, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

9. ALCS according to claim 7, wherein, communications portion can be optionally sends to the geo-location service device with the geographic position of determined ALCD.

10. ALCS according to claim 9, wherein, communications portion comprises wireless receiver.

11. ALCS according to claim 10, wherein, the selectivity of position determining part is switched and is carried out automatically by ALCD.

12. ALCS according to claim 11, wherein, the selectivity of position determining part is switched and is carried out automatically by communications portion.

13. ALCS according to claim 10, wherein, the selectivity of position determining part is switched by ALCD is manual and is undertaken.

14. ALCS according to claim 13, wherein, the selectivity of position determining part switches in manual carrying out on the communications portion.

15., wherein, expand the Internet resources that the autonomous mode utilization is selected from the group of being made of following network according to claim 6 or 7 described ALCS:

Computer network;

Communication network; With

Wireless network.

16. ALCS according to claim 15, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

17. ALCS according to claim 16, wherein, wireless network is a blue tooth radio network.

18. ALCS according to claim 16, wherein, wireless network is IEEE 802.11 wireless networks.

19., wherein, expand the autonomous mode utilization and can send the external unit that expands supplementary according to claim 6 or 7 described ALCS.

20. ALCS according to claim 19, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

21. ALCS according to claim 20, wherein, external unit utilizes wireless transmission to send the expansion supplementary.

22. ALCS according to claim 21, wherein, wireless transmission comprises that bluetooth sends.

23. ALCS according to claim 21, wherein, wireless transmission comprises that IEEE 802.11 sends.

24. ALCS according to claim 21, wherein, external unit comprises the wireless transmitter again of GPS.

25. ALCS according to claim 20, wherein, external unit utilizes non-wireless transmission to send the expansion supplementary.

26. ALCS according to claim 25, wherein, non-wireless transmission comprises connected in series.

27. ALCS according to claim 25, wherein, non-wireless transmission comprises that Ethernet connects.

28. ALCS according to claim 25, wherein, non-wireless transmission comprises electrical connection.

29. ALCS according to claim 20 wherein, expands the positional information that supplementary comprises external unit.

30. ALCS according to claim 20 wherein, expands the almanac data that supplementary comprises gps satellite.

31. ALCS according to claim 7, wherein, the ALCD that operates under pattern Network Based utilizes the transmitter in the Exterior Communications System to determine the geographic position of ALCD.

32. ALCS according to claim 31, wherein, ALCD utilizes step-out time (" TDOA ") technology to determine the geographic position of ALCD.

33. ALCS according to claim 32, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

34. ALCS according to claim 7, wherein, the ALCD that operates under reverse auxiliary mode monitors ALCS.

35. ALCS according to claim 34, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

36. ALCS according to claim 35, wherein, the ALCD that operates under reverse auxiliary mode monitors that ALCS is so that be used in the power management of ALCD.

37. ALCS according to claim 36, wherein, power management comprises that change sends to the characteristic of the antenna beam of ALCD from the base station, and wherein the base station is in ALCS.

38. ALCS according to claim 35, wherein, the ALCD that operates under reverse auxiliary mode monitors that ALCS is so that be used in the plot planning of ALCD.

39. ALCS according to claim 35, wherein, ALCD sends to the geo-location service device with the geographic position of determined ALCD with the wireless network monitor message.

40. according to the described ALCS of claim 39, wherein, the wireless network monitor message comprises the wireless signal strength of wireless network on the geographic position of ALCD.

41. ALCS according to claim 35, wherein, ALCD sends to the geo-location service device with geographic position, speed and the orientation of ALCD in wireless network.

42. ALCS according to claim 35, wherein, the ALCD that operates under reverse auxiliary mode is provided at redundancy time and the frequency reference information of measuring on the ALCD to the geo-location service device.

43. according to the described ALCS of claim 42, wherein, ALCS is analog wireless networks time migration and frequency drift from redundancy time of measuring at ALCD and frequency reference information.

44. ALCS according to claim 35, wherein, the multipath information that ALCD will measure on ALCD sends to the geo-location service device.

45. according to the described ALCS of claim 44, wherein, ALCS is according to the measured multipath information simulation wireless network multipath characteristics from ALCD.

46. ALCS according to claim 35, wherein, ALCD aims at the phaselocked loop (" PLL ") of ALCD radio tracking ring.

47. ALCS according to claim 7, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

48. according to the described ALCS of claim 47, wherein, the direct GPS that the ALCD that operates under reverse auxiliary mode need not to be used to the 2nd ALCD in ALCS with utilizing the geo-location service device assists.

49. according to the described ALCS of claim 47, wherein, the ALCD that operates under reverse auxiliary mode utilizes spatial domain multiplexed (" SDM ") to improve frequency capability in the sub-district of ALCS.

50. according to the described ALCS of claim 47, wherein, when scheduled event took place, position determining part was switched between primary importance deterministic model and second place deterministic model.

51. according to the described ALCS of claim 50, wherein, scheduled event is selected by hand by the user.

52. according to the described ALCS of claim 50, wherein, scheduled event is initially obtaining of at least one gps satellite signal.

53. according to the described ALCS of claim 52, wherein, the primary importance deterministic model is the GPS stand-alone mode, and second place deterministic model is to select from the group of being made up of following pattern:

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

54. according to the described ALCS of claim 53, wherein, the switching of the selectivity of position determining part switches to the GPS stand-alone mode with position determining part from second place deterministic model.

55. according to the described ALCS of claim 53, wherein, second place deterministic model is a GPS network assistance pattern.

56. according to the described ALCS of claim 53, wherein, second place deterministic model is reverse auxiliary mode.

57. according to the described ALCS of claim 56, wherein, ALCD can receive the information from second information source.

58. according to the described ALCS of claim 57, wherein, second information source is to select from the group of being made up of following network:

Blueteeth network;

PMR private mobile radio (" SMR ") network;

PCS Personal Communications System (" PCS ") network;

Network of non-radio local;

WLAN (wireless local area network);

Infrared network;

Paging network;

The two-way paging network; With

The FM radio network.

59. according to the described ALCS of claim 58, wherein, WLAN (wireless local area network) is IEEE 802.11 wireless networks.

60. according to the described ALCS of claim 58, wherein, the geographic position of ALCD is to be used to determine from the gps signal of at least one gps satellite with from the information of second information source.

61. according to the described ALCS of claim 50, wherein, scheduled event is to have passed through the schedule time amount that does not obtain at least one gps satellite signal.

62. according to the described ALCS of claim 61, wherein, scheduled event occurs in the geographic position of ALCD determines that the time is in 30 seconds time windows at center.

63. according to the described ALCS of claim 47, wherein,

Communications portion can be optionally sends to the geo-location service device with the geographic position of determined ALCD;

Communications portion comprises wireless receiver; With

Communications portion periodically sends to position determining part with frequency reference message.

64. according to the described ALCS of claim 63, wherein, frequency reference message makes the call treatment clock aim at base station clock, wherein the call treatment clock is the part of communications portion, and base station clock and geo-location service device carry out signal communication.

65. according to the described ALCS of claim 63, wherein, frequency reference message comprises the error between call treatment clock and the base station clock, wherein the call treatment clock is the part of communications portion, and base station clock and geo-location service device carry out signal communication.

66., wherein, periodically the gps clock in the position determining part is compared with the call treatment clock, to determine the frequency shift (FS) of gps clock according to the described ALCS of claim 65.

67. according to the described ALCS of claim 66, wherein, the periodicity of the periodicity transmission of frequency reference message and gps clock and call treatment clock relatively has same period.

68. according to the described ALCS of claim 67, wherein, when scheduled event took place, position determining part was switched between primary importance deterministic model and second place deterministic model.

69. according to the described ALCS of claim 68, wherein, scheduled event is initially obtaining of at least one gps satellite signal.

70. according to the described ALCS of claim 69, wherein, the switching of the selectivity of position determining part switches to the GPS stand-alone mode with position determining part from the primary importance deterministic model.

71. according to the described ALCS of claim 70, wherein, the switching of the selectivity of position determining part switches to second place deterministic model with position determining part from the GPS stand-alone mode.

72. an aided location communication facilities (" ALCD "), this ALCD comprises:

The communications portion of communicating by letter with cordless communication network; With

The position determining part that contains the GPS engine,

Wherein, communications portion can optionally be switched between following pattern:

The primary importance deterministic model and

Determine at least a other position determining mode in the geographic position of ALCD.

73. according to the described ALCD of claim 72, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

74. according to the described ALCD of claim 73, wherein, the primary importance deterministic model is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

75. according to the described ALCD of claim 74, wherein, at least a other position determining mode is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

76. according to the described ALCD of claim 75, wherein, the selectivity switching is determined to take place simultaneously with the geographic position of ALCD basically.

77. according to the described ALCD of claim 75, wherein, communications portion can be optionally sends to the geo-location service device with the geographic position of determined ALCD.

78. according to the described ALCD of claim 77, wherein, communications portion comprises wireless receiver.

79., wherein, expand the Internet resources that the autonomous mode utilization is selected from the group of being made of following network according to claim 74 or 75 described ALCD:

Computer network;

Communication network; With

Wireless network.

80. according to the described ALCD of claim 79, wherein, wireless network is a blue tooth radio network.

81. 0 described ALCD according to Claim 8, wherein, wireless network is IEEE 802.11 wireless networks.

82., wherein, expand the autonomous mode utilization and can send the external unit that expands supplementary according to claim 74 or 75 described ALCD.

83. 2 described ALCD according to Claim 8, wherein, external unit utilizes wireless transmission to send the expansion supplementary.

84. 3 described ALCD according to Claim 8, wherein, wireless transmission comprises that bluetooth sends.

85. 3 described ALCD according to Claim 8, wherein, wireless transmission comprises that I EEE 802.11 sends.

86. 3 described ALCD according to Claim 8, wherein, external unit comprises the wireless transmitter again of GPS.

87. 2 described ALCD according to Claim 8, wherein, external unit utilizes non-wireless transmission to send the expansion supplementary.

88. 2 described ALCD wherein, expand the positional information that supplementary comprises external unit according to Claim 8.

89. 8 described ALCD wherein, expand the almanac data that supplementary comprises gps satellite according to Claim 8.

90. according to claim 73 or 74 described ALCD, wherein, when scheduled event took place, position determining part was switched between GPS stand-alone mode and at least a other position determining mode.

91. according to the described ALCD of claim 90, wherein, scheduled event is selected by hand by the user.

92. according to the described ALCD of claim 90, wherein, scheduled event is initially obtaining of at least one gps satellite signal.

93. according to the described ALCD of claim 92, wherein, the switching of the selectivity of gps receiver switches to the GPS stand-alone mode with position determining part from least a other position determining mode.

94. according to the described ALCD of claim 93, wherein, ALCD can receive the information from second information source.

95. according to the described ALCD of claim 94, wherein, second information source is to select from the group of being made up of following network:

Blueteeth network;

PMR private mobile radio (" SMR ") network;

PCS Personal Communications System (" PCS ") network;

Network of non-radio local;

WLAN (wireless local area network);

Infrared network;

Paging network;

The two-way paging network; With

The FM radio network.

96. according to the described ALCD of claim 95, wherein, WLAN (wireless local area network) is I EEE 802.11 wireless networks.

97. according to the described ALCD of claim 95, wherein, the geographic position of ALCD is to be used to determine from the gps signal of at least one gps satellite with from the information of second information source.

98. an aided location communication facilities (" ALCD "), this ALCD comprises:

The instrument of communicating by letter with cordless communication network; With

The position determining part that contains the GPS engine,

Wherein, means of communication can optionally switch between following:

The primary importance deterministic model and

Determine at least a other position determining mode in the geographic position of ALCD.

99. according to the described ALCD of claim 98, wherein, the GPS engine is can receive gps signal and generate GPS tracker with the corresponding GPS pseudo-range of the gps signal signal that receives.

100. according to the described ALCD of claim 99, wherein, the primary importance deterministic model is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

101. according to the described ALCD of claim 100, wherein, at least a other position determining mode is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

102. an aided location communication system (" ALCS ") comprises:

Aided location communication facilities (" ALCD ") comprising:

Receive and handle the GPS part of gps signal,

The GPS portion of external and with the policy selection device that GPS partly is coupled, be used for determining positioning strategy that wherein, the policy selection device can optionally switch between following according to the state of GPS part:

The primary importance deterministic model and

Determine ALCD the geographic position at least a other position determining mode and

With the communications portion of GPS part and the coupling of policy selection device, be used for data are sent to the geo-location service device and receive data from the geo-location service device; With

Geo-location service device by communication network is communicated by letter with the communications portion of ALCD comprises:

Form the auxiliary data generating portion of location assistance data; With

Data are sent to ALCD and receive the Control on Communication part of data from ALCD.

103. an aided location communication facilities (" ALCD ") of following the tracks of at least one gps satellite comprises:

Bus structure,

CPU (central processing unit) (CPU) core comprises:

Microprocessor with the bus structure coupling;

Cache memory with the bus structure coupling is used for store software code;

Random access memory with the bus structure coupling is used to store data; With

ROM (read-only memory) with the bus structure coupling is used to store boot; With

The GPS engine comprises:

GPS and wide area expand reception, tracking and the demodulation engine of service (WAAS) signal, and wherein, the GPS structure can be coupled by bus structure and two different agreement interfaces at least,

Wherein, CPU can optionally switch between following:

The primary importance deterministic model and

Determine at least a other position determining mode in the geographic position of ALCD.

104. an aided location communication facilities (" ALCD ") of following the tracks of at least one gps satellite comprises:

Bus structure,

CPU (central processing unit) (CPU) core comprises:

Microprocessor with the bus structure coupling;

Cache memory with the bus structure coupling is used for store software code;

With the random access memory of bus structure couplings, be used to store data and storage be used to follow the tracks of at least one gps satellite from main code; With

ROM (read-only memory) with the bus structure coupling is used to store boot; With

The GPS engine comprises:

GPS and wide area expand reception, tracking and the demodulation engine of service (WAAS) signal, and wherein, the GPS engine can optionally be used to follow the tracks of at least one gps satellite with what store from main code,

Wherein, CPU can optionally switch between following:

The primary importance deterministic model and

Determine at least a other position determining mode in the geographic position of ALCD.

105. an aided location communication facilities (" ALCD ") of following the tracks of at least one gps satellite comprises:

Bus structure,

CPU (central processing unit) (CPU) core comprises:

Microprocessor with the bus structure coupling;

Cache memory with the bus structure coupling is used for store software code;

Random access memory with the bus structure coupling is used to store data;

ROM (read-only memory) with the bus structure coupling is used to store boot; With

The GPS engine comprises:

GPS and wide area expand reception, tracking and the demodulation engine of service (WAAS) signal, and wherein, the GPS structure can be by bus structure and at least two different agreement interfaces couplings, and protocol interface selected automatically by the GPS structure,

Wherein, CPU can optionally switch between following:

The primary importance deterministic model and

Determine at least a other position determining mode in the geographic position of ALCD.

106. in the definite aided location communication system (" ALCS "), contain the method in geographic position of the aided location communication facilities (" ALCD ") of position determining part and communications portion, this method comprises:

On position determining part, receive at least one gps signal from least one gps satellite,

The switching of selectivity between following:

The primary importance deterministic model and

Determine ALCD the geographic position at least a other position determining mode and

Determine the geographic position of ALCD.

107. according to the described method of claim 106, wherein, the primary importance deterministic model is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

108. according to the described method of claim 107, wherein, at least a other position determining mode is to select from the group of being made up of following pattern:

The GPS stand-alone mode;

The GPS autonomous mode;

GPS network assistance pattern;

GPS network center pattern;

Pattern Network Based;

Reverse auxiliary mode; With

Expand autonomous mode.

109. according to the described method of claim 108, wherein, basically with switch to the selected at least a identical time of other position determining mode, utilize selected at least a other position determining mode to determine the geographic position of ALCD.

110., comprise that further the geolocation server in described ALCS optionally sends the geographic position of determined ALCD according to the described method of claim 108.

111., wherein, determine that the geographic position undertaken by ALCD according to the described method of claim 110.

112. according to the described method of claim 111, wherein, the GPS engine is determined to utilize in the position, and communications portion is determined the geographic position of ALCD.

113. according to the described method of claim 111, wherein, the selectivity in the geographic position of determined ALCD sends is undertaken by ALCD, and the geographic position is sent to the geo-location service device from ALCD.

114., wherein, optionally switch and comprise and selectively switch ALCD automatically according to the described method of claim 111.

115. according to the described method of claim 111, wherein, optionally switching comprises the manual ALCD that selectively switches.

116., wherein, select to expand autonomous mode and further comprise from the Internet resources reception augmented pattern information of from the group of forming by following network, selecting according to the described method of claim 108:

Computer network;

Communication network; With

Wireless network.

117. according to the described method of claim 116, wherein, wireless network is a blue tooth radio network.

118. according to the described method of claim 116, wherein, wireless network is IEEE 802.11 wireless networks.

119., wherein, select to expand the expansion supplementary that autonomous mode comprises that further reception sends from external unit according to the described method of claim 108.

120., wherein, receive the expansion supplementary by wireless transmission according to the described method of claim 119.

121., wherein, send reception by bluetooth and expand supplementary according to the described method of claim 120.

122., wherein, send reception by IEEE 802.11 and expand supplementary according to the described method of claim 120.

123., wherein, receive the expansion supplementary that sends from external unit and comprise the expansion supplementary that reception sends from stationary objects according to the described method of claim 119.

124., wherein, receive the expansion supplementary that sends from stationary objects and comprise the expansion supplementary that reception sends from the EXIT label according to the described method of claim 123.

125., wherein, receive the expansion supplementary that sends from stationary objects and comprise the expansion supplementary that reception sends from traffic indication board according to the described method of claim 123.

126., wherein, receive the expansion supplementary that sends from stationary objects and comprise the expansion supplementary that reception sends from light beam according to the described method of claim 123.

127., wherein, expand autonomous mode and comprise that reception repeats the expansion supplementary of the external unit transmission of radiation supplementary from comprising GPS according to the described method of claim 119.

128., wherein, receive the expansion supplementary by non-wireless transmission according to the described method of claim 119.

129., wherein, expand supplementary by reception connected in series according to the described method of claim 128.

130., wherein, expand autonomous mode and comprise that connecting reception by Ethernet expands supplementary according to the described method of claim 128.

131., wherein, expand autonomous mode and comprise by being electrically connected reception expansion supplementary according to the described method of claim 128.

132., wherein, expand autonomous mode and comprise that battery charger in the external unit receives and expand supplementary according to the described method of claim 131.

133., wherein, select to expand autonomous mode and further comprise from the Internet resources reception expansion supplementary of from the group of forming by following network, selecting according to the described method of claim 108:

Computer network;

Communication network; With

Wireless network and

Wherein, receive the expansion supplementary and comprise the almanac data that receives gps satellite.

134., wherein, select to expand the expansion supplementary that autonomous mode comprises that further reception sends from external unit according to the described method of claim 133.

135., wherein, receive the expansion supplementary that sends from external unit and comprise the positional information that receives external unit according to the described method of claim 134.

136. according to the described method of claim 108, wherein, when scheduled event took place, ALCD is the switching between GPS stand-alone mode and at least a other pattern optionally.

137. according to the described method of claim 136, wherein, scheduled event is selected by hand by the user.

138. according to the described method of claim 136, wherein, scheduled event is initially obtaining of at least one gps satellite signal.

139., comprise that further selectivity switches to the GPS stand-alone mode from least a other position determining mode according to the described method of claim 136.

140. according to the described method of claim 139, wherein, ALCD receives the information from second information source.

141. according to the described method of claim 140, wherein, second information source is to select from the group of being made up of following network:

Blueteeth network;

PMR private mobile radio (" SMR ") network;

PCS Personal Communications System (" PCS ") network;

Network of non-radio local;

WLAN (wireless local area network);

Infrared network;

Paging network;

The two-way paging network; With

The FM radio network.

142. according to the described method of claim 141, wherein, WLAN (wireless local area network) is IEEE 802.11 wireless networks.

143. according to the described method of claim 142, wherein, the geographic position of ALCD is to be used to determine from the gps signal of at least one gps satellite with from the information of second information source.

144., comprise further that optionally the geographic position with determined ALCD is presented on the ALCD according to the described method of claim 136.

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